Add 20/7 and 45/54, Solve 2 6/7 + 45/54 as a fraction

Add 20/7 and 45/54

1^st number: 2 6/7, 2^nd number: 45/54

20/7 + 45/54 is 155/42.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 7 × 54 = 378,
20/7 = 20 × 54/7 × 54 = 1080/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
45/54 = 45 × 7/54 × 7 = 315/378
Add the two like fractions:
1080/378 + 315/378 = 1080 + 315/378 = 1395/378
1395/378 simplified gives 155/42
So, 20/7 + 45/54 = 155/42
In mixed form: 329/42

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