Subtract 30/45 from 4/36
4/36 - 30/45 is -5/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
4/36 = 4 × 5/36 × 5 = 20/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
30/45 = 30 × 4/45 × 4 = 120/180 - Subtract the two like fractions:
20/180 - 120/180 = 20 - 120/180 = -100/180 - After reducing the fraction, the answer is -5/9
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