Subtract 81/70 from 27/24
1st number: 1 3/24, 2nd number: 1 11/70
27/24 - 81/70 is -9/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 70 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 24 × 35 = 840,
27/24 = 27 × 35/24 × 35 = 945/840 - Likewise, for the 2nd fraction, since 70 × 12 = 840,
81/70 = 81 × 12/70 × 12 = 972/840 - Subtract the two like fractions:
945/840 - 972/840 = 945 - 972/840 = -27/840 - After reducing the fraction, the answer is -9/280
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