Subtract 35/90 from 30/40
30/40 - 35/90 is 13/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
30/40 = 30 × 9/40 × 9 = 270/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
35/90 = 35 × 4/90 × 4 = 140/360 - Subtract the two like fractions:
270/360 - 140/360 = 270 - 140/360 = 130/360 - After reducing the fraction, the answer is 13/36
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