Add 16/72 and 45/21, Solve 16/72 + 2 3/21 as a fraction

Add 16/72 and 45/21

1^st number: 16/72, 2^nd number: 2 3/21

16/72 + 45/21 is 149/63.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 21 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 72 × 7 = 504,
16/72 = 16 × 7/72 × 7 = 112/504
Likewise, for the 2nd fraction, since 21 × 24 = 504,
45/21 = 45 × 24/21 × 24 = 1080/504
Add the two like fractions:
112/504 + 1080/504 = 112 + 1080/504 = 1192/504
1192/504 simplified gives 149/63
So, 16/72 + 45/21 = 149/63
In mixed form: 223/63

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