Subtract 70/40 from 28/90
1st number: 28/90, 2nd number: 1 30/40
28/90 - 70/40 is -259/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
28/90 = 28 × 4/90 × 4 = 112/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
70/40 = 70 × 9/40 × 9 = 630/360 - Subtract the two like fractions:
112/360 - 630/360 = 112 - 630/360 = -518/360 - After reducing the fraction, the answer is -259/180
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