Subtract 70/75 from 10/18
10/18 - 70/75 is -17/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 75 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 18 × 25 = 450,
10/18 = 10 × 25/18 × 25 = 250/450 - Likewise, for the 2nd fraction, since 75 × 6 = 450,
70/75 = 70 × 6/75 × 6 = 420/450 - Subtract the two like fractions:
250/450 - 420/450 = 250 - 420/450 = -170/450 - After reducing the fraction, the answer is -17/45
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