Subtract 3/80 from 18/70
18/70 - 3/80 is 123/560.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
18/70 = 18 × 8/70 × 8 = 144/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
3/80 = 3 × 7/80 × 7 = 21/560 - Subtract the two like fractions:
144/560 - 21/560 = 144 - 21/560 = 123/560
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