Add 20/15 and 4/9
1st number: 1 5/15, 2nd number: 4/9
20/15 + 4/9 is 16/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
20/15 = 20 × 3/15 × 3 = 60/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
4/9 = 4 × 5/9 × 5 = 20/45 - Add the two like fractions:
60/45 + 20/45 = 60 + 20/45 = 80/45 - 80/45 simplified gives 16/9
- So, 20/15 + 4/9 = 16/9
In mixed form: 17/9
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