Subtract 20/5 from 18/63
1st number: 18/63, 2nd number: 4 0/5
18/63 - 20/5 is -26/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 5 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
18/63 = 18 × 5/63 × 5 = 90/315 - Likewise, for the 2nd fraction, since 5 × 63 = 315,
20/5 = 20 × 63/5 × 63 = 1260/315 - Subtract the two like fractions:
90/315 - 1260/315 = 90 - 1260/315 = -1170/315 - After reducing the fraction, the answer is -26/7
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