Subtract 15/50 from 7/63, Solve 7/63

Subtract 15/50 from 7/63

7/63 - 15/50 is -17/90.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 50 is 3150

Next, find the equivalent fraction of both fractional numbers with denominator 3150
For the 1st fraction, since 63 × 50 = 3150,
7/63 = 7 × 50/63 × 50 = 350/3150
Likewise, for the 2nd fraction, since 50 × 63 = 3150,
15/50 = 15 × 63/50 × 63 = 945/3150
Subtract the two like fractions:
350/3150 - 945/3150 = 350 - 945/3150 = -595/3150
After reducing the fraction, the answer is -17/90

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