Add 3/84 and 28/35
3/84 + 28/35 is 117/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 35 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
3/84 = 3 × 5/84 × 5 = 15/420 - Likewise, for the 2nd fraction, since 35 × 12 = 420,
28/35 = 28 × 12/35 × 12 = 336/420 - Add the two like fractions:
15/420 + 336/420 = 15 + 336/420 = 351/420 - 351/420 simplified gives 117/140
- So, 3/84 + 28/35 = 117/140
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