Add 45/21 and 15/45, Solve 2 3/21 + 15/45 as a fraction

Add 45/21 and 15/45

1^st number: 2 3/21, 2^nd number: 15/45

45/21 + 15/45 is 52/21.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 45 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 21 × 15 = 315,
45/21 = 45 × 15/21 × 15 = 675/315
Likewise, for the 2nd fraction, since 45 × 7 = 315,
15/45 = 15 × 7/45 × 7 = 105/315
Add the two like fractions:
675/315 + 105/315 = 675 + 105/315 = 780/315
780/315 simplified gives 52/21
So, 45/21 + 15/45 = 52/21
In mixed form: 210/21

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