Add 28/3 and 40/42, Solve 9 1/3 + 40/42 as a fraction

Add 28/3 and 40/42

1^st number: 9 1/3, 2^nd number: 40/42

28/3 + 40/42 is 72/7.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 42 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 3 × 14 = 42,
28/3 = 28 × 14/3 × 14 = 392/42
Likewise, for the 2nd fraction, since 42 × 1 = 42,
40/42 = 40 × 1/42 × 1 = 40/42
Add the two like fractions:
392/42 + 40/42 = 392 + 40/42 = 432/42
432/42 simplified gives 72/7
So, 28/3 + 40/42 = 72/7
In mixed form: 102/7

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