Subtract 81/49 from 21/24
1st number: 21/24, 2nd number: 1 32/49
21/24 - 81/49 is -305/392.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 49 is 1176
Next, find the equivalent fraction of both fractional numbers with denominator 1176 - For the 1st fraction, since 24 × 49 = 1176,
21/24 = 21 × 49/24 × 49 = 1029/1176 - Likewise, for the 2nd fraction, since 49 × 24 = 1176,
81/49 = 81 × 24/49 × 24 = 1944/1176 - Subtract the two like fractions:
1029/1176 - 1944/1176 = 1029 - 1944/1176 = -915/1176 - After reducing the fraction, the answer is -305/392
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