Subtract 21/28 from 70/18
1st number: 3 16/18, 2nd number: 21/28
70/18 - 21/28 is 113/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
70/18 = 70 × 14/18 × 14 = 980/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
21/28 = 21 × 9/28 × 9 = 189/252 - Subtract the two like fractions:
980/252 - 189/252 = 980 - 189/252 = 791/252 - After reducing the fraction, the answer is 113/36
- In mixed form: 35/36
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