Subtract 49/27 from 15/90, Solve 15/90

Subtract 49/27 from 15/90

1^st number: 15/90, 2^nd number: 1 22/27

15/90 - 49/27 is -89/54.

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

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 90 × 3 = 270,
15/90 = 15 × 3/90 × 3 = 45/270
Likewise, for the 2nd fraction, since 27 × 10 = 270,
49/27 = 49 × 10/27 × 10 = 490/270
Subtract the two like fractions:
45/270 - 490/270 = 45 - 490/270 = -445/270
After reducing the fraction, the answer is -89/54

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