Subtract 9/30 from 40/80
40/80 - 9/30 is 1/5.
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,
40/80 = 40 × 3/80 × 3 = 120/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
9/30 = 9 × 8/30 × 8 = 72/240 - Subtract the two like fractions:
120/240 - 72/240 = 120 - 72/240 = 48/240 - After reducing the fraction, the answer is 1/5
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