Add 27/15 and 10/40, Solve 1 12/15 + 10/40 as a fraction

Add 27/15 and 10/40

1^st number: 1 12/15, 2^nd number: 10/40

27/15 + 10/40 is 41/20.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 15 × 8 = 120,
27/15 = 27 × 8/15 × 8 = 216/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
10/40 = 10 × 3/40 × 3 = 30/120
Add the two like fractions:
216/120 + 30/120 = 216 + 30/120 = 246/120
246/120 simplified gives 41/20
So, 27/15 + 10/40 = 41/20
In mixed form: 21/20

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