Subtract 21/16 from 30/4
1st number: 7 2/4, 2nd number: 1 5/16
30/4 - 21/16 is 99/16.
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,
30/4 = 30 × 4/4 × 4 = 120/16 - Likewise, for the 2nd fraction, since 16 × 1 = 16,
21/16 = 21 × 1/16 × 1 = 21/16 - Subtract the two like fractions:
120/16 - 21/16 = 120 - 21/16 = 99/16 - In mixed form: 63/16
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