Add 54/84 and 30/70
54/84 + 30/70 is 15/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 70 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 70 × 6 = 420,
30/70 = 30 × 6/70 × 6 = 180/420 - Add the two like fractions:
270/420 + 180/420 = 270 + 180/420 = 450/420 - 450/420 simplified gives 15/14
- So, 54/84 + 30/70 = 15/14
In mixed form: 11/14
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