Subtract 20/30 from 70/80
70/80 - 20/30 is 5/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
70/80 = 70 × 3/80 × 3 = 210/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
20/30 = 20 × 8/30 × 8 = 160/240 - Subtract the two like fractions:
210/240 - 160/240 = 210 - 160/240 = 50/240 - After reducing the fraction, the answer is 5/24
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