Subtract 5/70 from 18/28
18/28 - 5/70 is 4/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
18/28 = 18 × 5/28 × 5 = 90/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
5/70 = 5 × 2/70 × 2 = 10/140 - Subtract the two like fractions:
90/140 - 10/140 = 90 - 10/140 = 80/140 - After reducing the fraction, the answer is 4/7
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