Add 15/28 and 54/80
15/28 + 54/80 is 339/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 28 × 20 = 560,
15/28 = 15 × 20/28 × 20 = 300/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
54/80 = 54 × 7/80 × 7 = 378/560 - Add the two like fractions:
300/560 + 378/560 = 300 + 378/560 = 678/560 - 678/560 simplified gives 339/280
- So, 15/28 + 54/80 = 339/280
In mixed form: 159/280
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