Subtract 25/63 from 30/18, Solve 1 12/18

Subtract 25/63 from 30/18

1^st number: 1 12/18, 2^nd number: 25/63

30/18 - 25/63 is 80/63.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 63 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 18 × 7 = 126,
30/18 = 30 × 7/18 × 7 = 210/126
Likewise, for the 2nd fraction, since 63 × 2 = 126,
25/63 = 25 × 2/63 × 2 = 50/126
Subtract the two like fractions:
210/126 - 50/126 = 210 - 50/126 = 160/126
After reducing the fraction, the answer is 80/63
In mixed form: 117/63

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