Subtract 30/35 from 25/18, Solve 1 7/18

Subtract 30/35 from 25/18

1^st number: 1 7/18, 2^nd number: 30/35

25/18 - 30/35 is 67/126.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 35 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 18 × 35 = 630,
25/18 = 25 × 35/18 × 35 = 875/630
Likewise, for the 2nd fraction, since 35 × 18 = 630,
30/35 = 30 × 18/35 × 18 = 540/630
Subtract the two like fractions:
875/630 - 540/630 = 875 - 540/630 = 335/630
After reducing the fraction, the answer is 67/126

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