Subtract 30/54 from 10/80
10/80 - 30/54 is -31/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 54 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 80 × 27 = 2160,
10/80 = 10 × 27/80 × 27 = 270/2160 - Likewise, for the 2nd fraction, since 54 × 40 = 2160,
30/54 = 30 × 40/54 × 40 = 1200/2160 - Subtract the two like fractions:
270/2160 - 1200/2160 = 270 - 1200/2160 = -930/2160 - After reducing the fraction, the answer is -31/72
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