Subtract 21/50 from 2/7
2/7 - 21/50 is -47/350.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 50 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 7 × 50 = 350,
2/7 = 2 × 50/7 × 50 = 100/350 - Likewise, for the 2nd fraction, since 50 × 7 = 350,
21/50 = 21 × 7/50 × 7 = 147/350 - Subtract the two like fractions:
100/350 - 147/350 = 100 - 147/350 = -47/350
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