Subtract 3/70 from 42/9, Solve 4 6/9

Subtract 3/70 from 42/9

1^st number: 4 6/9, 2^nd number: 3/70

42/9 - 3/70 is 971/210.

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,
42/9 = 42 × 70/9 × 70 = 2940/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
3/70 = 3 × 9/70 × 9 = 27/630
Subtract the two like fractions:
2940/630 - 27/630 = 2940 - 27/630 = 2913/630
After reducing the fraction, the answer is 971/210
In mixed form: 4131/210

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