Answers

Subtract 15/45 from 60/42

1^st number: 1 18/42, 2^nd number: 15/45

60/42 - 15/45 is 23/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 45 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 42 × 15 = 630,
   60/42 = 60 × 15/42 × 15 = 900/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   15/45 = 15 × 14/45 × 14 = 210/630
4. Subtract the two like fractions:
   900/630 - 210/630 = 900 - 210/630 = 690/630
5. After reducing the fraction, the answer is 23/21
6. In mixed form: 12/21

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