Add 54/84 and 18/35
54/84 + 18/35 is 81/70.
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,
54/84 = 54 × 5/84 × 5 = 270/420 - Likewise, for the 2nd fraction, since 35 × 12 = 420,
18/35 = 18 × 12/35 × 12 = 216/420 - Add the two like fractions:
270/420 + 216/420 = 270 + 216/420 = 486/420 - 486/420 simplified gives 81/70
- So, 54/84 + 18/35 = 81/70
In mixed form: 111/70
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