Add 15/12 and 42/25, Solve 1 3/12 + 1 17/25 as a fraction

Add 15/12 and 42/25

1^st number: 1 3/12, 2^nd number: 1 17/25

15/12 + 42/25 is 293/100.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 25 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 12 × 25 = 300,
15/12 = 15 × 25/12 × 25 = 375/300
Likewise, for the 2nd fraction, since 25 × 12 = 300,
42/25 = 42 × 12/25 × 12 = 504/300
Add the two like fractions:
375/300 + 504/300 = 375 + 504/300 = 879/300
879/300 simplified gives 293/100
So, 15/12 + 42/25 = 293/100
In mixed form: 293/100

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