Subtract 90/35 from 27/16, Solve 1 11/16

Subtract 90/35 from 27/16

1^st number: 1 11/16, 2^nd number: 2 20/35

27/16 - 90/35 is -99/112.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 35 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 16 × 35 = 560,
27/16 = 27 × 35/16 × 35 = 945/560
Likewise, for the 2nd fraction, since 35 × 16 = 560,
90/35 = 90 × 16/35 × 16 = 1440/560
Subtract the two like fractions:
945/560 - 1440/560 = 945 - 1440/560 = -495/560
After reducing the fraction, the answer is -99/112

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