Subtract 4/70 from 40/18, Solve 2 4/18

Subtract 4/70 from 40/18

1^st number: 2 4/18, 2^nd number: 4/70

40/18 - 4/70 is 682/315.

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,
40/18 = 40 × 35/18 × 35 = 1400/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
4/70 = 4 × 9/70 × 9 = 36/630
Subtract the two like fractions:
1400/630 - 36/630 = 1400 - 36/630 = 1364/630
After reducing the fraction, the answer is 682/315
In mixed form: 252/315

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