Subtract 10/90 from 42/27, Solve 1 15/27

Subtract 10/90 from 42/27

1^st number: 1 15/27, 2^nd number: 10/90

42/27 - 10/90 is 13/9.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 90 is 270

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 27 × 10 = 270,
42/27 = 42 × 10/27 × 10 = 420/270
Likewise, for the 2nd fraction, since 90 × 3 = 270,
10/90 = 10 × 3/90 × 3 = 30/270
Subtract the two like fractions:
420/270 - 30/270 = 420 - 30/270 = 390/270
After reducing the fraction, the answer is 13/9
In mixed form: 14/9

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