Subtract 15/70 from 40/4, Solve 10 0/4

Subtract 15/70 from 40/4

1^st number: 10 0/4, 2^nd number: 15/70

40/4 - 15/70 is 137/14.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 70 is 140

Next, find the equivalent fraction of both fractional numbers with denominator 140
For the 1st fraction, since 4 × 35 = 140,
40/4 = 40 × 35/4 × 35 = 1400/140
Likewise, for the 2nd fraction, since 70 × 2 = 140,
15/70 = 15 × 2/70 × 2 = 30/140
Subtract the two like fractions:
1400/140 - 30/140 = 1400 - 30/140 = 1370/140
After reducing the fraction, the answer is 137/14
In mixed form: 911/14

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