Subtract 63/40 from 90/75
1st number: 1 15/75, 2nd number: 1 23/40
90/75 - 63/40 is -3/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 40 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 75 × 8 = 600,
90/75 = 90 × 8/75 × 8 = 720/600 - Likewise, for the 2nd fraction, since 40 × 15 = 600,
63/40 = 63 × 15/40 × 15 = 945/600 - Subtract the two like fractions:
720/600 - 945/600 = 720 - 945/600 = -225/600 - After reducing the fraction, the answer is -3/8
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