Subtract 4/70 from 27/9, Solve 3 0/9

Subtract 4/70 from 27/9

1^st number: 3 0/9, 2^nd number: 4/70

27/9 - 4/70 is 103/35.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 70 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 9 × 70 = 630,
27/9 = 27 × 70/9 × 70 = 1890/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
4/70 = 4 × 9/70 × 9 = 36/630
Subtract the two like fractions:
1890/630 - 36/630 = 1890 - 36/630 = 1854/630
After reducing the fraction, the answer is 103/35
In mixed form: 233/35

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