Subtract 25/7 from 5/90, Solve 5/90

Subtract 25/7 from 5/90

1^st number: 5/90, 2^nd number: 3 4/7

5/90 - 25/7 is -443/126.

Find the least common denominator or LCM of the two denominators:
LCM of 90 and 7 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 90 × 7 = 630,
5/90 = 5 × 7/90 × 7 = 35/630
Likewise, for the 2nd fraction, since 7 × 90 = 630,
25/7 = 25 × 90/7 × 90 = 2250/630
Subtract the two like fractions:
35/630 - 2250/630 = 35 - 2250/630 = -2215/630
After reducing the fraction, the answer is -443/126

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