Subtract 35/70 from 54/18, Solve 3 0/18

Subtract 35/70 from 54/18

1^st number: 3 0/18, 2^nd number: 35/70

54/18 - 35/70 is 5/2.

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,
54/18 = 54 × 35/18 × 35 = 1890/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
35/70 = 35 × 9/70 × 9 = 315/630
Subtract the two like fractions:
1890/630 - 315/630 = 1890 - 315/630 = 1575/630
After reducing the fraction, the answer is 5/2
In mixed form: 21/2

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