Add 15/6 and 81/40, Solve 2 3/6 + 2 1/40 as a fraction

Add 15/6 and 81/40

1^st number: 2 3/6, 2^nd number: 2 1/40

15/6 + 81/40 is 181/40.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 6 × 20 = 120,
15/6 = 15 × 20/6 × 20 = 300/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
81/40 = 81 × 3/40 × 3 = 243/120
Add the two like fractions:
300/120 + 243/120 = 300 + 243/120 = 543/120
543/120 simplified gives 181/40
So, 15/6 + 81/40 = 181/40
In mixed form: 421/40

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