Answers

Subtract 75/63 from 42/10

1^st number: 4 2/10, 2^nd number: 1 12/63

42/10 - 75/63 is 316/105.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 10 × 63 = 630,
   42/10 = 42 × 63/10 × 63 = 2646/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   75/63 = 75 × 10/63 × 10 = 750/630
4. Subtract the two like fractions:
   2646/630 - 750/630 = 2646 - 750/630 = 1896/630
5. After reducing the fraction, the answer is 316/105
6. In mixed form: 31/105

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