Add 72/90 and 18/9
1st number: 72/90, 2nd number: 2 0/9
72/90 + 18/9 is 14/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
72/90 = 72 × 1/90 × 1 = 72/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
18/9 = 18 × 10/9 × 10 = 180/90 - Add the two like fractions:
72/90 + 180/90 = 72 + 180/90 = 252/90 - 252/90 simplified gives 14/5
- So, 72/90 + 18/9 = 14/5
In mixed form: 24/5
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