Subtract 9/5 from 45/63, Solve 45/63

Subtract 9/5 from 45/63

1^st number: 45/63, 2^nd number: 1 4/5

45/63 - 9/5 is -38/35.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 5 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 63 × 5 = 315,
45/63 = 45 × 5/63 × 5 = 225/315
Likewise, for the 2nd fraction, since 5 × 63 = 315,
9/5 = 9 × 63/5 × 63 = 567/315
Subtract the two like fractions:
225/315 - 567/315 = 225 - 567/315 = -342/315
After reducing the fraction, the answer is -38/35

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