Subtract 6/50 from 21/70
21/70 - 6/50 is 9/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 50 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 70 × 5 = 350,
21/70 = 21 × 5/70 × 5 = 105/350 - Likewise, for the 2nd fraction, since 50 × 7 = 350,
6/50 = 6 × 7/50 × 7 = 42/350 - Subtract the two like fractions:
105/350 - 42/350 = 105 - 42/350 = 63/350 - After reducing the fraction, the answer is 9/50
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