Subtract 18/70 from 20/50
20/50 - 18/70 is 1/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 70 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 50 × 7 = 350,
20/50 = 20 × 7/50 × 7 = 140/350 - Likewise, for the 2nd fraction, since 70 × 5 = 350,
18/70 = 18 × 5/70 × 5 = 90/350 - Subtract the two like fractions:
140/350 - 90/350 = 140 - 90/350 = 50/350 - After reducing the fraction, the answer is 1/7
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