Add 45/3 and 20/84
1st number: 15 0/3, 2nd number: 20/84
45/3 + 20/84 is 320/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 3 × 28 = 84,
45/3 = 45 × 28/3 × 28 = 1260/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
20/84 = 20 × 1/84 × 1 = 20/84 - Add the two like fractions:
1260/84 + 20/84 = 1260 + 20/84 = 1280/84 - 1280/84 simplified gives 320/21
- So, 45/3 + 20/84 = 320/21
In mixed form: 155/21
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