Subtract 70/90 from 72/35, Solve 2 2/35

Subtract 70/90 from 72/35

1^st number: 2 2/35, 2^nd number: 70/90

72/35 - 70/90 is 403/315.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 90 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 35 × 18 = 630,
72/35 = 72 × 18/35 × 18 = 1296/630
Likewise, for the 2nd fraction, since 90 × 7 = 630,
70/90 = 70 × 7/90 × 7 = 490/630
Subtract the two like fractions:
1296/630 - 490/630 = 1296 - 490/630 = 806/630
After reducing the fraction, the answer is 403/315
In mixed form: 188/315

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