Subtract 3/4 from 30/45
30/45 - 3/4 is -1/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
30/45 = 30 × 4/45 × 4 = 120/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
3/4 = 3 × 45/4 × 45 = 135/180 - Subtract the two like fractions:
120/180 - 135/180 = 120 - 135/180 = -15/180 - After reducing the fraction, the answer is -1/12
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