Subtract 21/70 from 48/75
48/75 - 21/70 is 17/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 70 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
48/75 = 48 × 14/75 × 14 = 672/1050 - Likewise, for the 2nd fraction, since 70 × 15 = 1050,
21/70 = 21 × 15/70 × 15 = 315/1050 - Subtract the two like fractions:
672/1050 - 315/1050 = 672 - 315/1050 = 357/1050 - After reducing the fraction, the answer is 17/50
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