Question

( 7 3/20- 5 2/12)*1,5

Answer 1

=(7 9/60-5 10/60)*1,5=1 59/60*15/10=119/60*15/10=119/40=2 39/40

Answer 2

To calculate the result of the expression (7 3/20 - 5 2/12) * 1.5, follow these steps:

1. First, convert the mixed numbers to improper fractions. 7 3/20 = (7 * 20 + 3) / 20 = 143/20 5 2/12 = (5 * 12 + 2) / 12 = 62/12

2. Now, subtract the two fractions: (143/20 - 62/12)

3. To subtract the fractions, you need a common denominator. The least common multiple of 20 and 12 is 60. Convert both fractions to have a denominator of 60: (143/20) * (3/3) = 429/60 (62/12) * (5/5) = 310/60

4. Subtract the fractions: (429/60 - 310/60) = 119/60

5. Finally, multiply the result by 1.5: (119/60) * 1.5 = (119/60) * (3/2) = (119 * 3) / (60 * 2) = 357/120 = 119/40

So, the result of the expression is 119/40 or 2.975.