Subtract 21/4 from 40/3
1st number: 13 1/3, 2nd number: 5 1/4
40/3 - 21/4 is 97/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 4 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 3 × 4 = 12,
40/3 = 40 × 4/3 × 4 = 160/12 - Likewise, for the 2nd fraction, since 4 × 3 = 12,
21/4 = 21 × 3/4 × 3 = 63/12 - Subtract the two like fractions:
160/12 - 63/12 = 160 - 63/12 = 97/12 - In mixed form: 81/12
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