Subtract 21/12 from 40/4
1st number: 10 0/4, 2nd number: 1 9/12
40/4 - 21/12 is 33/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 4 × 3 = 12,
40/4 = 40 × 3/4 × 3 = 120/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
21/12 = 21 × 1/12 × 1 = 21/12 - Subtract the two like fractions:
120/12 - 21/12 = 120 - 21/12 = 99/12 - After reducing the fraction, the answer is 33/4
- In mixed form: 81/4
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