Add 12/15 and 40/84
12/15 + 40/84 is 134/105.
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,
12/15 = 12 × 28/15 × 28 = 336/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
40/84 = 40 × 5/84 × 5 = 200/420 - Add the two like fractions:
336/420 + 200/420 = 336 + 200/420 = 536/420 - 536/420 simplified gives 134/105
- So, 12/15 + 40/84 = 134/105
In mixed form: 129/105
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