Add 4/15 and 80/84
4/15 + 80/84 is 128/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
4/15 = 4 × 28/15 × 28 = 112/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
80/84 = 80 × 5/84 × 5 = 400/420 - Add the two like fractions:
112/420 + 400/420 = 112 + 400/420 = 512/420 - 512/420 simplified gives 128/105
- So, 4/15 + 80/84 = 128/105
In mixed form: 123/105
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