Subtract 21/35 from 28/50
28/50 - 21/35 is -1/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 35 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 50 × 7 = 350,
28/50 = 28 × 7/50 × 7 = 196/350 - Likewise, for the 2nd fraction, since 35 × 10 = 350,
21/35 = 21 × 10/35 × 10 = 210/350 - Subtract the two like fractions:
196/350 - 210/350 = 196 - 210/350 = -14/350 - After reducing the fraction, the answer is -1/25
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