Answers

Subtract 21/32 from 42/20

1^st number: 2 2/20, 2^nd number: 21/32

42/20 - 21/32 is 231/160.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 32 is 160
   
   Next, find the equivalent fraction of both fractional numbers with denominator 160
2. For the 1st fraction, since 20 × 8 = 160,
   42/20 = 42 × 8/20 × 8 = 336/160
3. Likewise, for the 2nd fraction, since 32 × 5 = 160,
   21/32 = 21 × 5/32 × 5 = 105/160
4. Subtract the two like fractions:
   336/160 - 105/160 = 336 - 105/160 = 231/160
5. In mixed form: 171/160

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