Add 45/12 and 5/84
1st number: 3 9/12, 2nd number: 5/84
45/12 + 5/84 is 80/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
45/12 = 45 × 7/12 × 7 = 315/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
5/84 = 5 × 1/84 × 1 = 5/84 - Add the two like fractions:
315/84 + 5/84 = 315 + 5/84 = 320/84 - 320/84 simplified gives 80/21
- So, 45/12 + 5/84 = 80/21
In mixed form: 317/21
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