Subtract 30/28 from 25/80
1st number: 25/80, 2nd number: 1 2/28
25/80 - 30/28 is -85/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 28 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
25/80 = 25 × 7/80 × 7 = 175/560 - Likewise, for the 2nd fraction, since 28 × 20 = 560,
30/28 = 30 × 20/28 × 20 = 600/560 - Subtract the two like fractions:
175/560 - 600/560 = 175 - 600/560 = -425/560 - After reducing the fraction, the answer is -85/112
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