Add 18/3 and 45/7, Solve 6 0/3 + 6 3/7 as a fraction

Add 18/3 and 45/7

1^st number: 6 0/3, 2^nd number: 6 3/7

18/3 + 45/7 is 87/7.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 7 is 21

Next, find the equivalent fraction of both fractional numbers with denominator 21
For the 1st fraction, since 3 × 7 = 21,
18/3 = 18 × 7/3 × 7 = 126/21
Likewise, for the 2nd fraction, since 7 × 3 = 21,
45/7 = 45 × 3/7 × 3 = 135/21
Add the two like fractions:
126/21 + 135/21 = 126 + 135/21 = 261/21
261/21 simplified gives 87/7
So, 18/3 + 45/7 = 87/7
In mixed form: 123/7

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