Add 20/45 and 72/27
1st number: 20/45, 2nd number: 2 18/27
20/45 + 72/27 is 28/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 45 × 3 = 135,
20/45 = 20 × 3/45 × 3 = 60/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
72/27 = 72 × 5/27 × 5 = 360/135 - Add the two like fractions:
60/135 + 360/135 = 60 + 360/135 = 420/135 - 420/135 simplified gives 28/9
- So, 20/45 + 72/27 = 28/9
In mixed form: 31/9
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