Subtract 40/84 from 15/50
15/50 - 40/84 is -37/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 84 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 50 × 42 = 2100,
15/50 = 15 × 42/50 × 42 = 630/2100 - Likewise, for the 2nd fraction, since 84 × 25 = 2100,
40/84 = 40 × 25/84 × 25 = 1000/2100 - Subtract the two like fractions:
630/2100 - 1000/2100 = 630 - 1000/2100 = -370/2100 - After reducing the fraction, the answer is -37/210
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