Subtract 27/80 from 20/30
20/30 - 27/80 is 79/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
20/30 = 20 × 8/30 × 8 = 160/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
27/80 = 27 × 3/80 × 3 = 81/240 - Subtract the two like fractions:
160/240 - 81/240 = 160 - 81/240 = 79/240
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