Add 28/80 and 45/54
28/80 + 45/54 is 71/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 54 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 80 × 27 = 2160,
28/80 = 28 × 27/80 × 27 = 756/2160 - Likewise, for the 2nd fraction, since 54 × 40 = 2160,
45/54 = 45 × 40/54 × 40 = 1800/2160 - Add the two like fractions:
756/2160 + 1800/2160 = 756 + 1800/2160 = 2556/2160 - 2556/2160 simplified gives 71/60
- So, 28/80 + 45/54 = 71/60
In mixed form: 111/60
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