Add 20/12 and 28/7, Solve 1 8/12 + 4 0/7 as a fraction

Add 20/12 and 28/7

1^st number: 1 8/12, 2^nd number: 4 0/7

20/12 + 28/7 is 17/3.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 7 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 12 × 7 = 84,
20/12 = 20 × 7/12 × 7 = 140/84
Likewise, for the 2nd fraction, since 7 × 12 = 84,
28/7 = 28 × 12/7 × 12 = 336/84
Add the two like fractions:
140/84 + 336/84 = 140 + 336/84 = 476/84
476/84 simplified gives 17/3
So, 20/12 + 28/7 = 17/3
In mixed form: 52/3

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