Subtract 21/16 from 28/4
1st number: 7 0/4, 2nd number: 1 5/16
28/4 - 21/16 is 91/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 16 is 16
Next, find the equivalent fraction of both fractional numbers with denominator 16 - For the 1st fraction, since 4 × 4 = 16,
28/4 = 28 × 4/4 × 4 = 112/16 - Likewise, for the 2nd fraction, since 16 × 1 = 16,
21/16 = 21 × 1/16 × 1 = 21/16 - Subtract the two like fractions:
112/16 - 21/16 = 112 - 21/16 = 91/16 - In mixed form: 511/16
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