Subtract 70/90 from 36/7, Solve 5 1/7

Subtract 70/90 from 36/7

1^st number: 5 1/7, 2^nd number: 70/90

36/7 - 70/90 is 275/63.

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

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 7 × 90 = 630,
36/7 = 36 × 90/7 × 90 = 3240/630
Likewise, for the 2nd fraction, since 90 × 7 = 630,
70/90 = 70 × 7/90 × 7 = 490/630
Subtract the two like fractions:
3240/630 - 490/630 = 3240 - 490/630 = 2750/630
After reducing the fraction, the answer is 275/63
In mixed form: 423/63

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