Subtract 7/90 from 98/8, Solve 12 2/8

Subtract 7/90 from 98/8

1^st number: 12 2/8, 2^nd number: 7/90

98/8 - 7/90 is 2191/180.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360

Next, find the equivalent fraction of both fractional numbers with denominator 360
For the 1st fraction, since 8 × 45 = 360,
98/8 = 98 × 45/8 × 45 = 4410/360
Likewise, for the 2nd fraction, since 90 × 4 = 360,
7/90 = 7 × 4/90 × 4 = 28/360
Subtract the two like fractions:
4410/360 - 28/360 = 4410 - 28/360 = 4382/360
After reducing the fraction, the answer is 2191/180
In mixed form: 1231/180

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