Add 54/84 and 15/30
54/84 + 15/30 is 8/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 30 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 30 × 14 = 420,
15/30 = 15 × 14/30 × 14 = 210/420 - Add the two like fractions:
270/420 + 210/420 = 270 + 210/420 = 480/420 - 480/420 simplified gives 8/7
- So, 54/84 + 15/30 = 8/7
In mixed form: 11/7
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