Add 20/15 and 42/54
1st number: 1 5/15, 2nd number: 42/54
20/15 + 42/54 is 19/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 15 × 18 = 270,
20/15 = 20 × 18/15 × 18 = 360/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
42/54 = 42 × 5/54 × 5 = 210/270 - Add the two like fractions:
360/270 + 210/270 = 360 + 210/270 = 570/270 - 570/270 simplified gives 19/9
- So, 20/15 + 42/54 = 19/9
In mixed form: 21/9
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