Subtract 21/56 from 12/5
1st number: 2 2/5, 2nd number: 21/56
12/5 - 21/56 is 81/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 5 × 56 = 280,
12/5 = 12 × 56/5 × 56 = 672/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
21/56 = 21 × 5/56 × 5 = 105/280 - Subtract the two like fractions:
672/280 - 105/280 = 672 - 105/280 = 567/280 - After reducing the fraction, the answer is 81/40
- In mixed form: 21/40
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