Subtract 18/49 from 90/10, Solve 9 0/10

Subtract 18/49 from 90/10

1^st number: 9 0/10, 2^nd number: 18/49

90/10 - 18/49 is 423/49.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 49 is 490

Next, find the equivalent fraction of both fractional numbers with denominator 490
For the 1st fraction, since 10 × 49 = 490,
90/10 = 90 × 49/10 × 49 = 4410/490
Likewise, for the 2nd fraction, since 49 × 10 = 490,
18/49 = 18 × 10/49 × 10 = 180/490
Subtract the two like fractions:
4410/490 - 180/490 = 4410 - 180/490 = 4230/490
After reducing the fraction, the answer is 423/49
In mixed form: 831/49

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