Add 40/3 and 21/28, Solve 13 1/3 + 21/28 as a fraction

Add 40/3 and 21/28

1^st number: 13 1/3, 2^nd number: 21/28

40/3 + 21/28 is 169/12.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 28 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 3 × 28 = 84,
40/3 = 40 × 28/3 × 28 = 1120/84
Likewise, for the 2nd fraction, since 28 × 3 = 84,
21/28 = 21 × 3/28 × 3 = 63/84
Add the two like fractions:
1120/84 + 63/84 = 1120 + 63/84 = 1183/84
1183/84 simplified gives 169/12
So, 40/3 + 21/28 = 169/12
In mixed form: 141/12

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