Add 20/15 and 72/9
1st number: 1 5/15, 2nd number: 8 0/9
20/15 + 72/9 is 28/3.
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,
72/9 = 72 × 5/9 × 5 = 360/45 - Add the two like fractions:
60/45 + 360/45 = 60 + 360/45 = 420/45 - 420/45 simplified gives 28/3
- So, 20/15 + 72/9 = 28/3
In mixed form: 91/3
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