Subtract 81/40 from 70/48
1st number: 1 22/48, 2nd number: 2 1/40
70/48 - 81/40 is -17/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 40 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
70/48 = 70 × 5/48 × 5 = 350/240 - Likewise, for the 2nd fraction, since 40 × 6 = 240,
81/40 = 81 × 6/40 × 6 = 486/240 - Subtract the two like fractions:
350/240 - 486/240 = 350 - 486/240 = -136/240 - After reducing the fraction, the answer is -17/30
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