Add 42/12 and 7/40, Solve 3 6/12 + 7/40 as a fraction

Add 42/12 and 7/40

1^st number: 3 6/12, 2^nd number: 7/40

42/12 + 7/40 is 147/40.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 12 × 10 = 120,
42/12 = 42 × 10/12 × 10 = 420/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
7/40 = 7 × 3/40 × 3 = 21/120
Add the two like fractions:
420/120 + 21/120 = 420 + 21/120 = 441/120
441/120 simplified gives 147/40
So, 42/12 + 7/40 = 147/40
In mixed form: 327/40

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