Add 54/21 and 14/45, Solve 2 12/21 + 14/45 as a fraction

Add 54/21 and 14/45

1^st number: 2 12/21, 2^nd number: 14/45

54/21 + 14/45 is 908/315.

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,
54/21 = 54 × 15/21 × 15 = 810/315
Likewise, for the 2nd fraction, since 45 × 7 = 315,
14/45 = 14 × 7/45 × 7 = 98/315
Add the two like fractions:
810/315 + 98/315 = 810 + 98/315 = 908/315
So, 54/21 + 14/45 = 908/315
In mixed form: 2278/315

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