Subtract 81/40 from 70/28
1st number: 2 14/28, 2nd number: 2 1/40
70/28 - 81/40 is 19/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
70/28 = 70 × 10/28 × 10 = 700/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
81/40 = 81 × 7/40 × 7 = 567/280 - Subtract the two like fractions:
700/280 - 567/280 = 700 - 567/280 = 133/280 - After reducing the fraction, the answer is 19/40
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