Subtract 81/70 from 36/28
1st number: 1 8/28, 2nd number: 1 11/70
36/28 - 81/70 is 9/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
36/28 = 36 × 5/28 × 5 = 180/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
81/70 = 81 × 2/70 × 2 = 162/140 - Subtract the two like fractions:
180/140 - 162/140 = 180 - 162/140 = 18/140 - After reducing the fraction, the answer is 9/70
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