Add 28/80 and 54/15
1st number: 28/80, 2nd number: 3 9/15
28/80 + 54/15 is 79/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 15 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
28/80 = 28 × 3/80 × 3 = 84/240 - Likewise, for the 2nd fraction, since 15 × 16 = 240,
54/15 = 54 × 16/15 × 16 = 864/240 - Add the two like fractions:
84/240 + 864/240 = 84 + 864/240 = 948/240 - 948/240 simplified gives 79/20
- So, 28/80 + 54/15 = 79/20
In mixed form: 319/20
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