Subtract 40/54 from 70/80
70/80 - 40/54 is 29/216.
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,
70/80 = 70 × 27/80 × 27 = 1890/2160 - Likewise, for the 2nd fraction, since 54 × 40 = 2160,
40/54 = 40 × 40/54 × 40 = 1600/2160 - Subtract the two like fractions:
1890/2160 - 1600/2160 = 1890 - 1600/2160 = 290/2160 - After reducing the fraction, the answer is 29/216
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