Subtract 84/63 from 40/75
1st number: 40/75, 2nd number: 1 21/63
40/75 - 84/63 is -4/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 63 is 1575
Next, find the equivalent fraction of both fractional numbers with denominator 1575 - For the 1st fraction, since 75 × 21 = 1575,
40/75 = 40 × 21/75 × 21 = 840/1575 - Likewise, for the 2nd fraction, since 63 × 25 = 1575,
84/63 = 84 × 25/63 × 25 = 2100/1575 - Subtract the two like fractions:
840/1575 - 2100/1575 = 840 - 2100/1575 = -1260/1575 - After reducing the fraction, the answer is -4/5
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