Subtract 84/63 from 27/40
1st number: 27/40, 2nd number: 1 21/63
27/40 - 84/63 is -79/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 63 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 40 × 63 = 2520,
27/40 = 27 × 63/40 × 63 = 1701/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
84/63 = 84 × 40/63 × 40 = 3360/2520 - Subtract the two like fractions:
1701/2520 - 3360/2520 = 1701 - 3360/2520 = -1659/2520 - After reducing the fraction, the answer is -79/120
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