Subtract 18/21 from 70/36
1st number: 1 34/36, 2nd number: 18/21
70/36 - 18/21 is 137/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 21 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
70/36 = 70 × 7/36 × 7 = 490/252 - Likewise, for the 2nd fraction, since 21 × 12 = 252,
18/21 = 18 × 12/21 × 12 = 216/252 - Subtract the two like fractions:
490/252 - 216/252 = 490 - 216/252 = 274/252 - After reducing the fraction, the answer is 137/126
- In mixed form: 111/126
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