Subtract 81/35 from 21/24
1st number: 21/24, 2nd number: 2 11/35
21/24 - 81/35 is -403/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 35 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 24 × 35 = 840,
21/24 = 21 × 35/24 × 35 = 735/840 - Likewise, for the 2nd fraction, since 35 × 24 = 840,
81/35 = 81 × 24/35 × 24 = 1944/840 - Subtract the two like fractions:
735/840 - 1944/840 = 735 - 1944/840 = -1209/840 - After reducing the fraction, the answer is -403/280
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