Subtract 5/45 from 90/14, Solve 6 6/14

Subtract 5/45 from 90/14

1^st number: 6 6/14, 2^nd number: 5/45

90/14 - 5/45 is 398/63.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 45 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 14 × 45 = 630,
90/14 = 90 × 45/14 × 45 = 4050/630
Likewise, for the 2nd fraction, since 45 × 14 = 630,
5/45 = 5 × 14/45 × 14 = 70/630
Subtract the two like fractions:
4050/630 - 70/630 = 4050 - 70/630 = 3980/630
After reducing the fraction, the answer is 398/63
In mixed form: 620/63

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