Subtract 84/63 from 20/25
1st number: 20/25, 2nd number: 1 21/63
20/25 - 84/63 is -8/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 63 is 1575
Next, find the equivalent fraction of both fractional numbers with denominator 1575 - For the 1st fraction, since 25 × 63 = 1575,
20/25 = 20 × 63/25 × 63 = 1260/1575 - Likewise, for the 2nd fraction, since 63 × 25 = 1575,
84/63 = 84 × 25/63 × 25 = 2100/1575 - Subtract the two like fractions:
1260/1575 - 2100/1575 = 1260 - 2100/1575 = -840/1575 - After reducing the fraction, the answer is -8/15
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