Add 42/3 and 45/12
1st number: 14 0/3, 2nd number: 3 9/12
42/3 + 45/12 is 71/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 3 × 4 = 12,
42/3 = 42 × 4/3 × 4 = 168/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
45/12 = 45 × 1/12 × 1 = 45/12 - Add the two like fractions:
168/12 + 45/12 = 168 + 45/12 = 213/12 - 213/12 simplified gives 71/4
- So, 42/3 + 45/12 = 71/4
In mixed form: 173/4
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