Subtract 7/21 from 49/5, Solve 9 4/5

Subtract 7/21 from 49/5

1^st number: 9 4/5, 2^nd number: 7/21

49/5 - 7/21 is 142/15.

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

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 5 × 21 = 105,
49/5 = 49 × 21/5 × 21 = 1029/105
Likewise, for the 2nd fraction, since 21 × 5 = 105,
7/21 = 7 × 5/21 × 5 = 35/105
Subtract the two like fractions:
1029/105 - 35/105 = 1029 - 35/105 = 994/105
After reducing the fraction, the answer is 142/15
In mixed form: 97/15

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