Subtract 30/60 from 25/90
25/90 - 30/60 is -2/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
25/90 = 25 × 2/90 × 2 = 50/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
30/60 = 30 × 3/60 × 3 = 90/180 - Subtract the two like fractions:
50/180 - 90/180 = 50 - 90/180 = -40/180 - After reducing the fraction, the answer is -2/9
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