Add 72/18 and 80/30
1st number: 4 0/18, 2nd number: 2 20/30
72/18 + 80/30 is 20/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
72/18 = 72 × 5/18 × 5 = 360/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
80/30 = 80 × 3/30 × 3 = 240/90 - Add the two like fractions:
360/90 + 240/90 = 360 + 240/90 = 600/90 - 600/90 simplified gives 20/3
- So, 72/18 + 80/30 = 20/3
In mixed form: 62/3
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