Add 24/18 and 28/21, Solve 1 6/18 + 1 7/21 as a fraction

Add 24/18 and 28/21

1^st number: 1 6/18, 2^nd number: 1 7/21

24/18 + 28/21 is 8/3.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 18 × 7 = 126,
24/18 = 24 × 7/18 × 7 = 168/126
Likewise, for the 2nd fraction, since 21 × 6 = 126,
28/21 = 28 × 6/21 × 6 = 168/126
Add the two like fractions:
168/126 + 168/126 = 168 + 168/126 = 336/126
336/126 simplified gives 8/3
So, 24/18 + 28/21 = 8/3
In mixed form: 22/3

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