Subtract 40/14 from 30/80
1st number: 30/80, 2nd number: 2 12/14
30/80 - 40/14 is -139/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 14 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
30/80 = 30 × 7/80 × 7 = 210/560 - Likewise, for the 2nd fraction, since 14 × 40 = 560,
40/14 = 40 × 40/14 × 40 = 1600/560 - Subtract the two like fractions:
210/560 - 1600/560 = 210 - 1600/560 = -1390/560 - After reducing the fraction, the answer is -139/56
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