Subtract 36/70 from 21/75
21/75 - 36/70 is -41/175.
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,
21/75 = 21 × 14/75 × 14 = 294/1050 - Likewise, for the 2nd fraction, since 70 × 15 = 1050,
36/70 = 36 × 15/70 × 15 = 540/1050 - Subtract the two like fractions:
294/1050 - 540/1050 = 294 - 540/1050 = -246/1050 - After reducing the fraction, the answer is -41/175
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