Subtract 21/12 from 72/35
1st number: 2 2/35, 2nd number: 1 9/12
72/35 - 21/12 is 43/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 12 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 35 × 12 = 420,
72/35 = 72 × 12/35 × 12 = 864/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
21/12 = 21 × 35/12 × 35 = 735/420 - Subtract the two like fractions:
864/420 - 735/420 = 864 - 735/420 = 129/420 - After reducing the fraction, the answer is 43/140
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