Add 21/5 and 27/21, Solve 4 1/5 + 1 6/21 as a fraction

Add 21/5 and 27/21

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

21/5 + 27/21 is 192/35.

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,
21/5 = 21 × 21/5 × 21 = 441/105
Likewise, for the 2nd fraction, since 21 × 5 = 105,
27/21 = 27 × 5/21 × 5 = 135/105
Add the two like fractions:
441/105 + 135/105 = 441 + 135/105 = 576/105
576/105 simplified gives 192/35
So, 21/5 + 27/21 = 192/35
In mixed form: 517/35

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