Subtract 7/28 from 2/90
2/90 - 7/28 is -41/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
2/90 = 2 × 14/90 × 14 = 28/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
7/28 = 7 × 45/28 × 45 = 315/1260 - Subtract the two like fractions:
28/1260 - 315/1260 = 28 - 315/1260 = -287/1260 - After reducing the fraction, the answer is -41/180
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