Subtract 9/40 from 21/75
21/75 - 9/40 is 11/200.
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,
21/75 = 21 × 8/75 × 8 = 168/600 - Likewise, for the 2nd fraction, since 40 × 15 = 600,
9/40 = 9 × 15/40 × 15 = 135/600 - Subtract the two like fractions:
168/600 - 135/600 = 168 - 135/600 = 33/600 - After reducing the fraction, the answer is 11/200
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