Subtract 40/70 from 49/18, Solve 2 13/18

Subtract 40/70 from 49/18

1^st number: 2 13/18, 2^nd number: 40/70

49/18 - 40/70 is 271/126.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 18 × 35 = 630,
49/18 = 49 × 35/18 × 35 = 1715/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
40/70 = 40 × 9/70 × 9 = 360/630
Subtract the two like fractions:
1715/630 - 360/630 = 1715 - 360/630 = 1355/630
After reducing the fraction, the answer is 271/126
In mixed form: 219/126

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