Add 15/84 and 20/15
1st number: 15/84, 2nd number: 1 5/15
15/84 + 20/15 is 127/84.
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,
15/84 = 15 × 5/84 × 5 = 75/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
20/15 = 20 × 28/15 × 28 = 560/420 - Add the two like fractions:
75/420 + 560/420 = 75 + 560/420 = 635/420 - 635/420 simplified gives 127/84
- So, 15/84 + 20/15 = 127/84
In mixed form: 143/84
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