Question

Выполните вычитание а)5-3/4 b)8-7/9 v)10-11/17 g)2 5/12-7/10 d)6 7/8-9/10 e)6 5/12-5 4/9 j)31 5 /10-21 9/16 z)10-4/9 u)7 5/12- 5 4/9 k)70 5/72-67 23/72 l)37-36 8/17 m)92 5/64-91 37/64 помогите выполните вычитание дробей

Answer 1

A)5-3/4=20/4-3/4=17/4=4,1/4
b)8-7/9=72/9-7/9=65/9=7,2/9
v)10-11/17=170/17-11/17=159/17=9,6/17
g)2,5/12-7/10=29/12-7/10=145/60-42/60=103/60
=1,43/60
d)6,7/8-9/10=55/8-9/10=275/40-36/40=239/40
=5,39/40

Answer 2

Subtraction of Fractions

a) 5 - 3/4: To subtract fractions, we need to have a common denominator. In this case, the common denominator is 4. So, we have:

5 - 3/4 = 20/4 - 3/4 = (20 - 3)/4 = 17/4.

b) 8 - 7/9: Again, we need a common denominator, which is 9 in this case:

8 - 7/9 = 72/9 - 7/9 = (72 - 7)/9 = 65/9.

v) 10 - 11/17: The common denominator here is 17:

10 - 11/17 = 170/17 - 11/17 = (170 - 11)/17 = 159/17.

g) 2 + 5/12 - 7/10: To subtract fractions, we need a common denominator. In this case, the common denominator is 12:

2 + 5/12 - 7/10 = 24/12 + 5/12 - 84/120 = (24 + 5 - 84)/120 = -55/120.

d) 6 + 7/8 - 9/10: The common denominator here is 8:

6 + 7/8 - 9/10 = 48/8 + 7/8 - 72/80 = (48 + 7 - 72)/80 = -17/80.

e) 6 + 5/12 - 5 + 4/9: To subtract fractions, we need a common denominator. In this case, the common denominator is 12:

6 + 5/12 - 5 + 4/9 = 72/12 + 5/12 - 60/12 + 48/12 = (72 + 5 - 60 + 48)/12 = 65/12.

j) 31 + 5/10 - 21 + 9/16: The common denominator here is 16:

31 + 5/10 - 21 + 9/16 = 496/16 + 8/16 - 336/16 + 9/16 = (496 + 8 - 336 + 9)/16 = 177/16.

z) 10 - 4/9: The common denominator here is 9:

10 - 4/9 = 90/9 - 4/9 = (90 - 4)/9 = 86/9.

u) 7 + 5/12 - 5 + 4/9: To subtract fractions, we need a common denominator. In this case, the common denominator is 12:

7 + 5/12 - 5 + 4/9 = 84/12 + 5/12 - 60/12 + 48/12 = (84 + 5 - 60 + 48)/12 = 77/12.

k) 70 + 5/72 - 67 + 23/72: The common denominator here is 72:

70 + 5/72 - 67 + 23/72 = 5040/72 + 5/72 - 4824/72 + 23/72 = (5040 + 5 - 4824 + 23)/72 = 244/72.

l) 37 - 36 + 8/17: The common denominator here is 17:

37 - 36 + 8/