Subtract 90/8 from 6/45, Solve 6/45

Subtract 90/8 from 6/45

1^st number: 6/45, 2^nd number: 11 2/8

6/45 - 90/8 is -667/60.

Find the least common denominator or LCM of the two denominators:
LCM of 45 and 8 is 360

Next, find the equivalent fraction of both fractional numbers with denominator 360
For the 1st fraction, since 45 × 8 = 360,
6/45 = 6 × 8/45 × 8 = 48/360
Likewise, for the 2nd fraction, since 8 × 45 = 360,
90/8 = 90 × 45/8 × 45 = 4050/360
Subtract the two like fractions:
48/360 - 4050/360 = 48 - 4050/360 = -4002/360
After reducing the fraction, the answer is -667/60

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