Subtract 8/70 from 63/18, Solve 3 9/18

Subtract 8/70 from 63/18

1^st number: 3 9/18, 2^nd number: 8/70

63/18 - 8/70 is 237/70.

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,
63/18 = 63 × 35/18 × 35 = 2205/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
8/70 = 8 × 9/70 × 9 = 72/630
Subtract the two like fractions:
2205/630 - 72/630 = 2205 - 72/630 = 2133/630
After reducing the fraction, the answer is 237/70
In mixed form: 327/70

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