Add 28/45 and 42/54
28/45 + 42/54 is 7/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 45 × 6 = 270,
28/45 = 28 × 6/45 × 6 = 168/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
42/54 = 42 × 5/54 × 5 = 210/270 - Add the two like fractions:
168/270 + 210/270 = 168 + 210/270 = 378/270 - 378/270 simplified gives 7/5
- So, 28/45 + 42/54 = 7/5
In mixed form: 12/5
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