Subtract 2/27 from 21/15
1st number: 1 6/15, 2nd number: 2/27
21/15 - 2/27 is 179/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 15 × 9 = 135,
21/15 = 21 × 9/15 × 9 = 189/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
2/27 = 2 × 5/27 × 5 = 10/135 - Subtract the two like fractions:
189/135 - 10/135 = 189 - 10/135 = 179/135 - In mixed form: 144/135
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