Add 54/3 and 21/49, Solve 18 0/3 + 21/49 as a fraction

Add 54/3 and 21/49

1^st number: 18 0/3, 2^nd number: 21/49

54/3 + 21/49 is 129/7.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 49 is 147

Next, find the equivalent fraction of both fractional numbers with denominator 147
For the 1st fraction, since 3 × 49 = 147,
54/3 = 54 × 49/3 × 49 = 2646/147
Likewise, for the 2nd fraction, since 49 × 3 = 147,
21/49 = 21 × 3/49 × 3 = 63/147
Add the two like fractions:
2646/147 + 63/147 = 2646 + 63/147 = 2709/147
2709/147 simplified gives 129/7
So, 54/3 + 21/49 = 129/7
In mixed form: 183/7

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