Add 20/21 and 28/24, Solve 20/21 + 1 4/24 as a fraction

Add 20/21 and 28/24

1^st number: 20/21, 2^nd number: 1 4/24

20/21 + 28/24 is 89/42.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 24 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 21 × 8 = 168,
20/21 = 20 × 8/21 × 8 = 160/168
Likewise, for the 2nd fraction, since 24 × 7 = 168,
28/24 = 28 × 7/24 × 7 = 196/168
Add the two like fractions:
160/168 + 196/168 = 160 + 196/168 = 356/168
356/168 simplified gives 89/42
So, 20/21 + 28/24 = 89/42
In mixed form: 25/42

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