Subtract 70/54 from 21/15
1st number: 1 6/15, 2nd number: 1 16/54
21/15 - 70/54 is 14/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 15 × 18 = 270,
21/15 = 21 × 18/15 × 18 = 378/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
70/54 = 70 × 5/54 × 5 = 350/270 - Subtract the two like fractions:
378/270 - 350/270 = 378 - 350/270 = 28/270 - After reducing the fraction, the answer is 14/135
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