Subtract 18/45 from 63/30, Solve 2 3/30

Subtract 18/45 from 63/30

1^st number: 2 3/30, 2^nd number: 18/45

63/30 - 18/45 is 17/10.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 45 is 90

Next, find the equivalent fraction of both fractional numbers with denominator 90
For the 1st fraction, since 30 × 3 = 90,
63/30 = 63 × 3/30 × 3 = 189/90
Likewise, for the 2nd fraction, since 45 × 2 = 90,
18/45 = 18 × 2/45 × 2 = 36/90
Subtract the two like fractions:
189/90 - 36/90 = 189 - 36/90 = 153/90
After reducing the fraction, the answer is 17/10
In mixed form: 17/10

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