Answers

Subtract 3/63 from 72/70

1^st number: 1 2/70, 2^nd number: 3/63

72/70 - 3/63 is 103/105.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 70 × 9 = 630,
   72/70 = 72 × 9/70 × 9 = 648/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   3/63 = 3 × 10/63 × 10 = 30/630
4. Subtract the two like fractions:
   648/630 - 30/630 = 648 - 30/630 = 618/630
5. After reducing the fraction, the answer is 103/105

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