Add 42/12 and 45/25, Solve 3 6/12 + 1 20/25 as a fraction

Add 42/12 and 45/25

1^st number: 3 6/12, 2^nd number: 1 20/25

42/12 + 45/25 is 53/10.

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,
42/12 = 42 × 25/12 × 25 = 1050/300
Likewise, for the 2nd fraction, since 25 × 12 = 300,
45/25 = 45 × 12/25 × 12 = 540/300
Add the two like fractions:
1050/300 + 540/300 = 1050 + 540/300 = 1590/300
1590/300 simplified gives 53/10
So, 42/12 + 45/25 = 53/10
In mixed form: 53/10

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