Add 12/20 and 72/18
1st number: 12/20, 2nd number: 4 0/18
12/20 + 72/18 is 23/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
12/20 = 12 × 9/20 × 9 = 108/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
72/18 = 72 × 10/18 × 10 = 720/180 - Add the two like fractions:
108/180 + 720/180 = 108 + 720/180 = 828/180 - 828/180 simplified gives 23/5
- So, 12/20 + 72/18 = 23/5
In mixed form: 43/5
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