Subtract 70/15 from 21/27
1st number: 21/27, 2nd number: 4 10/15
21/27 - 70/15 is -35/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 15 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 27 × 5 = 135,
21/27 = 21 × 5/27 × 5 = 105/135 - Likewise, for the 2nd fraction, since 15 × 9 = 135,
70/15 = 70 × 9/15 × 9 = 630/135 - Subtract the two like fractions:
105/135 - 630/135 = 105 - 630/135 = -525/135 - After reducing the fraction, the answer is -35/9
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