Subtract 90/56 from 6/9, Solve 6/9 - 1 34/56 as a fraction

Subtract 90/56 from 6/9

1^st number: 6/9, 2^nd number: 1 34/56

6/9 - 90/56 is -79/84.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 56 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 9 × 56 = 504,
6/9 = 6 × 56/9 × 56 = 336/504
Likewise, for the 2nd fraction, since 56 × 9 = 504,
90/56 = 90 × 9/56 × 9 = 810/504
Subtract the two like fractions:
336/504 - 810/504 = 336 - 810/504 = -474/504
After reducing the fraction, the answer is -79/84

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