Question

5 3/4 + 1 1/4= 42 1/10 - 27 7/10= 42 1/10 - 30 1/5=

Answer 1

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Answer 2

Let's break down each of these calculations step by step:

1. 5 3/4 + 1 1/4: First, add the whole numbers: 5 + 1 = 6. Next, add the fractions: 3/4 + 1/4 = 4/4 = 1 (since 4/4 is equivalent to 1 whole). Combine the whole number and the fraction: 6 + 1 = 7. So, 5 3/4 + 1 1/4 = 7.

2. 42 1/10 - 27 7/10: First, subtract the whole numbers: 42 - 27 = 15. Next, subtract the fractions: 1/10 - 7/10 = -6/10 (or -3/5 when simplified). Combine the whole number and the fraction: 15 - 3/5. To make the subtraction easier, you can find a common denominator. The common denominator is 5. So, 15 - 3/5 = 15 - (3/5 * 5/5) = 15 - 15/5 = 15 - 3 = 12.

3. 42 1/10 - 30 1/5: First, subtract the whole numbers: 42 - 30 = 12. Next, subtract the fractions: 1/10 - 1/5. To subtract these fractions, you need a common denominator, which is 10. 1/10 - 1/5 = 1/10 - 2/10 = (1 - 2)/10 = -1/10. Combine the whole number and the fraction: 12 - 1/10 = 12 0/10 - 1/10 = 12 1/10.

So, 42 1/10 - 30 1/5 = 12 1/10.