Add 27/15 and 50/40, Solve 1 12/15 + 1 10/40 as a fraction

Add 27/15 and 50/40

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

27/15 + 50/40 is 61/20.

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,
50/40 = 50 × 3/40 × 3 = 150/120
Add the two like fractions:
216/120 + 150/120 = 216 + 150/120 = 366/120
366/120 simplified gives 61/20
So, 27/15 + 50/40 = 61/20
In mixed form: 31/20

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