Add 24/40 and 81/30, Solve 24/40 + 2 21/30 as a fraction

Add 24/40 and 81/30

1^st number: 24/40, 2^nd number: 2 21/30

24/40 + 81/30 is 33/10.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 30 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 40 × 3 = 120,
24/40 = 24 × 3/40 × 3 = 72/120
Likewise, for the 2nd fraction, since 30 × 4 = 120,
81/30 = 81 × 4/30 × 4 = 324/120
Add the two like fractions:
72/120 + 324/120 = 72 + 324/120 = 396/120
396/120 simplified gives 33/10
So, 24/40 + 81/30 = 33/10
In mixed form: 33/10

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