Add 3/72 and 30/21, Solve 3/72 + 1 9/21 as a fraction

Add 3/72 and 30/21

1^st number: 3/72, 2^nd number: 1 9/21

3/72 + 30/21 is 247/168.

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,
3/72 = 3 × 7/72 × 7 = 21/504
Likewise, for the 2nd fraction, since 21 × 24 = 504,
30/21 = 30 × 24/21 × 24 = 720/504
Add the two like fractions:
21/504 + 720/504 = 21 + 720/504 = 741/504
741/504 simplified gives 247/168
So, 3/72 + 30/21 = 247/168
In mixed form: 179/168

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