Subtract 4/7 from 15/75, Solve 15/75

Subtract 4/7 from 15/75

15/75 - 4/7 is -13/35.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 7 is 525

Next, find the equivalent fraction of both fractional numbers with denominator 525
For the 1st fraction, since 75 × 7 = 525,
15/75 = 15 × 7/75 × 7 = 105/525
Likewise, for the 2nd fraction, since 7 × 75 = 525,
4/7 = 4 × 75/7 × 75 = 300/525
Subtract the two like fractions:
105/525 - 300/525 = 105 - 300/525 = -195/525
After reducing the fraction, the answer is -13/35

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