Subtract 20/63 from 70/18
1st number: 3 16/18, 2nd number: 20/63
70/18 - 20/63 is 25/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
70/18 = 70 × 7/18 × 7 = 490/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
20/63 = 20 × 2/63 × 2 = 40/126 - Subtract the two like fractions:
490/126 - 40/126 = 490 - 40/126 = 450/126 - After reducing the fraction, the answer is 25/7
- In mixed form: 34/7
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