Add 8/84 and 20/15
1st number: 8/84, 2nd number: 1 5/15
8/84 + 20/15 is 10/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
8/84 = 8 × 5/84 × 5 = 40/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
20/15 = 20 × 28/15 × 28 = 560/420 - Add the two like fractions:
40/420 + 560/420 = 40 + 560/420 = 600/420 - 600/420 simplified gives 10/7
- So, 8/84 + 20/15 = 10/7
In mixed form: 13/7
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