Subtract 35/7 from 45/54, Solve 45/54

Subtract 35/7 from 45/54

1^st number: 45/54, 2^nd number: 5 0/7

45/54 - 35/7 is -25/6.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 7 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 54 × 7 = 378,
45/54 = 45 × 7/54 × 7 = 315/378
Likewise, for the 2nd fraction, since 7 × 54 = 378,
35/7 = 35 × 54/7 × 54 = 1890/378
Subtract the two like fractions:
315/378 - 1890/378 = 315 - 1890/378 = -1575/378
After reducing the fraction, the answer is -25/6

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