Answers

Subtract 42/63 from 45/25

1^st number: 1 20/25, 2^nd number: 42/63

45/25 - 42/63 is 17/15.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 63 is 1575
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1575
2. For the 1st fraction, since 25 × 63 = 1575,
   45/25 = 45 × 63/25 × 63 = 2835/1575
3. Likewise, for the 2nd fraction, since 63 × 25 = 1575,
   42/63 = 42 × 25/63 × 25 = 1050/1575
4. Subtract the two like fractions:
   2835/1575 - 1050/1575 = 2835 - 1050/1575 = 1785/1575
5. After reducing the fraction, the answer is 17/15
6. In mixed form: 12/15

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