Add 28/54 and 15/80
28/54 + 15/80 is 305/432.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 80 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 54 × 40 = 2160,
28/54 = 28 × 40/54 × 40 = 1120/2160 - Likewise, for the 2nd fraction, since 80 × 27 = 2160,
15/80 = 15 × 27/80 × 27 = 405/2160 - Add the two like fractions:
1120/2160 + 405/2160 = 1120 + 405/2160 = 1525/2160 - 1525/2160 simplified gives 305/432
- So, 28/54 + 15/80 = 305/432
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