Subtract 84/63 from 40/6, Solve 6 4/6

Subtract 84/63 from 40/6

1^st number: 6 4/6, 2^nd number: 1 21/63

40/6 - 84/63 is 16/3.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 63 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 6 × 21 = 126,
40/6 = 40 × 21/6 × 21 = 840/126
Likewise, for the 2nd fraction, since 63 × 2 = 126,
84/63 = 84 × 2/63 × 2 = 168/126
Subtract the two like fractions:
840/126 - 168/126 = 840 - 168/126 = 672/126
After reducing the fraction, the answer is 16/3
In mixed form: 51/3

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