Add 15/3 and 18/40, Solve 5 0/3 + 18/40 as a fraction

Add 15/3 and 18/40

1^st number: 5 0/3, 2^nd number: 18/40

15/3 + 18/40 is 109/20.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 3 × 40 = 120,
15/3 = 15 × 40/3 × 40 = 600/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
18/40 = 18 × 3/40 × 3 = 54/120
Add the two like fractions:
600/120 + 54/120 = 600 + 54/120 = 654/120
654/120 simplified gives 109/20
So, 15/3 + 18/40 = 109/20
In mixed form: 59/20

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