Subtract 21/48 from 30/75
30/75 - 21/48 is -3/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 48 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 75 × 16 = 1200,
30/75 = 30 × 16/75 × 16 = 480/1200 - Likewise, for the 2nd fraction, since 48 × 25 = 1200,
21/48 = 21 × 25/48 × 25 = 525/1200 - Subtract the two like fractions:
480/1200 - 525/1200 = 480 - 525/1200 = -45/1200 - After reducing the fraction, the answer is -3/80
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