Subtract 1/63 from 30/27, Solve 1 3/27

Subtract 1/63 from 30/27

1^st number: 1 3/27, 2^nd number: 1/63

30/27 - 1/63 is 23/21.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 63 is 189

Next, find the equivalent fraction of both fractional numbers with denominator 189
For the 1st fraction, since 27 × 7 = 189,
30/27 = 30 × 7/27 × 7 = 210/189
Likewise, for the 2nd fraction, since 63 × 3 = 189,
1/63 = 1 × 3/63 × 3 = 3/189
Subtract the two like fractions:
210/189 - 3/189 = 210 - 3/189 = 207/189
After reducing the fraction, the answer is 23/21
In mixed form: 12/21

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