Subtract 10/45 from 90/27, Solve 3 9/27

Subtract 10/45 from 90/27

1^st number: 3 9/27, 2^nd number: 10/45

90/27 - 10/45 is 28/9.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 45 is 135

Next, find the equivalent fraction of both fractional numbers with denominator 135
For the 1st fraction, since 27 × 5 = 135,
90/27 = 90 × 5/27 × 5 = 450/135
Likewise, for the 2nd fraction, since 45 × 3 = 135,
10/45 = 10 × 3/45 × 3 = 30/135
Subtract the two like fractions:
450/135 - 30/135 = 450 - 30/135 = 420/135
After reducing the fraction, the answer is 28/9
In mixed form: 31/9

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