Subtract 9/70 from 40/4, Solve 10 0/4

Subtract 9/70 from 40/4

1^st number: 10 0/4, 2^nd number: 9/70

40/4 - 9/70 is 691/70.

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,
9/70 = 9 × 2/70 × 2 = 18/140
Subtract the two like fractions:
1400/140 - 18/140 = 1400 - 18/140 = 1382/140
After reducing the fraction, the answer is 691/70
In mixed form: 961/70

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