Subtract 70/75 from 49/63
49/63 - 70/75 is -7/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 75 is 1575
Next, find the equivalent fraction of both fractional numbers with denominator 1575 - For the 1st fraction, since 63 × 25 = 1575,
49/63 = 49 × 25/63 × 25 = 1225/1575 - Likewise, for the 2nd fraction, since 75 × 21 = 1575,
70/75 = 70 × 21/75 × 21 = 1470/1575 - Subtract the two like fractions:
1225/1575 - 1470/1575 = 1225 - 1470/1575 = -245/1575 - After reducing the fraction, the answer is -7/45
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Related: 98/63-70/75