Add 42/12 and 81/50, Solve 3 6/12 + 1 31/50 as a fraction

Add 42/12 and 81/50

1^st number: 3 6/12, 2^nd number: 1 31/50

42/12 + 81/50 is 128/25.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 50 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 12 × 25 = 300,
42/12 = 42 × 25/12 × 25 = 1050/300
Likewise, for the 2nd fraction, since 50 × 6 = 300,
81/50 = 81 × 6/50 × 6 = 486/300
Add the two like fractions:
1050/300 + 486/300 = 1050 + 486/300 = 1536/300
1536/300 simplified gives 128/25
So, 42/12 + 81/50 = 128/25
In mixed form: 53/25

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