Answers

Subtract 21/60 from 42/5

1^st number: 8 2/5, 2^nd number: 21/60

42/5 - 21/60 is 161/20.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 60 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 5 × 12 = 60,
   42/5 = 42 × 12/5 × 12 = 504/60
3. Likewise, for the 2nd fraction, since 60 × 1 = 60,
   21/60 = 21 × 1/60 × 1 = 21/60
4. Subtract the two like fractions:
   504/60 - 21/60 = 504 - 21/60 = 483/60
5. After reducing the fraction, the answer is 161/20
6. In mixed form: 81/20

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