Answers

Subtract 15/63 from 70/40

1^st number: 1 30/40, 2^nd number: 15/63

70/40 - 15/63 is 127/84.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 63 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 40 × 63 = 2520,
   70/40 = 70 × 63/40 × 63 = 4410/2520
3. Likewise, for the 2nd fraction, since 63 × 40 = 2520,
   15/63 = 15 × 40/63 × 40 = 600/2520
4. Subtract the two like fractions:
   4410/2520 - 600/2520 = 4410 - 600/2520 = 3810/2520
5. After reducing the fraction, the answer is 127/84
6. In mixed form: 143/84

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