Subtract 1/70 from 63/9, Solve 7 0/9

Subtract 1/70 from 63/9

1^st number: 7 0/9, 2^nd number: 1/70

63/9 - 1/70 is 489/70.

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,
63/9 = 63 × 70/9 × 70 = 4410/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
1/70 = 1 × 9/70 × 9 = 9/630
Subtract the two like fractions:
4410/630 - 9/630 = 4410 - 9/630 = 4401/630
After reducing the fraction, the answer is 489/70
In mixed form: 669/70

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