Subtract 24/5 from 6/21, Solve 6/21

Subtract 24/5 from 6/21

1^st number: 6/21, 2^nd number: 4 4/5

6/21 - 24/5 is -158/35.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 5 is 105

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 21 × 5 = 105,
6/21 = 6 × 5/21 × 5 = 30/105
Likewise, for the 2nd fraction, since 5 × 21 = 105,
24/5 = 24 × 21/5 × 21 = 504/105
Subtract the two like fractions:
30/105 - 504/105 = 30 - 504/105 = -474/105
After reducing the fraction, the answer is -158/35

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