Subtract 30/75 from 7/30
7/30 - 30/75 is -1/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 75 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 30 × 5 = 150,
7/30 = 7 × 5/30 × 5 = 35/150 - Likewise, for the 2nd fraction, since 75 × 2 = 150,
30/75 = 30 × 2/75 × 2 = 60/150 - Subtract the two like fractions:
35/150 - 60/150 = 35 - 60/150 = -25/150 - After reducing the fraction, the answer is -1/6
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