Answers

Subtract 42/60 from 21/7

1^st number: 3 0/7, 2^nd number: 42/60

21/7 - 42/60 is 23/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 7 × 60 = 420,
   21/7 = 21 × 60/7 × 60 = 1260/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   42/60 = 42 × 7/60 × 7 = 294/420
4. Subtract the two like fractions:
   1260/420 - 294/420 = 1260 - 294/420 = 966/420
5. After reducing the fraction, the answer is 23/10
6. In mixed form: 23/10

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