Subtract 21/40 from 6/48
6/48 - 21/40 is -2/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 40 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
6/48 = 6 × 5/48 × 5 = 30/240 - Likewise, for the 2nd fraction, since 40 × 6 = 240,
21/40 = 21 × 6/40 × 6 = 126/240 - Subtract the two like fractions:
30/240 - 126/240 = 30 - 126/240 = -96/240 - After reducing the fraction, the answer is -2/5
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