Add 72/75 and 21/6, Solve 72/75 + 3 3/6 as a fraction

Add 72/75 and 21/6

1^st number: 72/75, 2^nd number: 3 3/6

72/75 + 21/6 is 223/50.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 6 is 150

Next, find the equivalent fraction of both fractional numbers with denominator 150
For the 1st fraction, since 75 × 2 = 150,
72/75 = 72 × 2/75 × 2 = 144/150
Likewise, for the 2nd fraction, since 6 × 25 = 150,
21/6 = 21 × 25/6 × 25 = 525/150
Add the two like fractions:
144/150 + 525/150 = 144 + 525/150 = 669/150
669/150 simplified gives 223/50
So, 72/75 + 21/6 = 223/50
In mixed form: 423/50

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