Subtract 21/75 from 6/40
6/40 - 21/75 is -13/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 75 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 40 × 15 = 600,
6/40 = 6 × 15/40 × 15 = 90/600 - Likewise, for the 2nd fraction, since 75 × 8 = 600,
21/75 = 21 × 8/75 × 8 = 168/600 - Subtract the two like fractions:
90/600 - 168/600 = 90 - 168/600 = -78/600 - After reducing the fraction, the answer is -13/100
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