Subtract 70/90 from 1/4
1/4 - 70/90 is -19/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
1/4 = 1 × 45/4 × 45 = 45/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
70/90 = 70 × 2/90 × 2 = 140/180 - Subtract the two like fractions:
45/180 - 140/180 = 45 - 140/180 = -95/180 - After reducing the fraction, the answer is -19/36
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