Subtract 27/70 from 27/20
1st number: 1 7/20, 2nd number: 27/70
27/20 - 27/70 is 27/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
27/20 = 27 × 7/20 × 7 = 189/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
27/70 = 27 × 2/70 × 2 = 54/140 - Subtract the two like fractions:
189/140 - 54/140 = 189 - 54/140 = 135/140 - After reducing the fraction, the answer is 27/28
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