Subtract 90/48 from 7/27, Solve 7/27

Subtract 90/48 from 7/27

1^st number: 7/27, 2^nd number: 1 42/48

7/27 - 90/48 is -349/216.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 48 is 432

Next, find the equivalent fraction of both fractional numbers with denominator 432
For the 1st fraction, since 27 × 16 = 432,
7/27 = 7 × 16/27 × 16 = 112/432
Likewise, for the 2nd fraction, since 48 × 9 = 432,
90/48 = 90 × 9/48 × 9 = 810/432
Subtract the two like fractions:
112/432 - 810/432 = 112 - 810/432 = -698/432
After reducing the fraction, the answer is -349/216

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