Question

3/10-9/25:(4-1 9/10)+4/7=

Answer 1

1) 4- 1 9/10= 3 10/10 - 1 9/10= 2 1 /10
2) 9/25 : 2 1 /10= 9/25: 21/10=9/25 * 10/21= 3/5 * 2/ 7=6/35
4) 3/10 -6/35= 21/70 - 12/70= 9/70
5) 9/70 + 4/7= 9/70 + 40/70= 49/70=7/10

Answer 2

To solve the expression, follow the order of operations (PEMDAS/BODMAS):

1. First, perform the subtraction inside the parentheses: (4 - 1 9/10) = (4 - 1.9) = 2.1

2. Next, add the result from step 1 to 4/7: 2.1 + 4/7

To add these two fractions, you need to find a common denominator. The common denominator for 7 and 10 is 70 (7 * 10). Now, convert both fractions to have a denominator of 70:

2.1 = 2.1 * (70/70) = 147/70 4/7 = 4 * (10/10) = 40/70

3. Now add the fractions: 147/70 + 40/70 = 187/70

So the final answer is 187/70.