Subtract 21/16 from 42/2
1st number: 21 0/2, 2nd number: 1 5/16
42/2 - 21/16 is 315/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 16 is 16
Next, find the equivalent fraction of both fractional numbers with denominator 16 - For the 1st fraction, since 2 × 8 = 16,
42/2 = 42 × 8/2 × 8 = 336/16 - Likewise, for the 2nd fraction, since 16 × 1 = 16,
21/16 = 21 × 1/16 × 1 = 21/16 - Subtract the two like fractions:
336/16 - 21/16 = 336 - 21/16 = 315/16 - In mixed form: 1911/16
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