Add 9/20 and 72/18
1st number: 9/20, 2nd number: 4 0/18
9/20 + 72/18 is 89/20.
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,
9/20 = 9 × 9/20 × 9 = 81/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
72/18 = 72 × 10/18 × 10 = 720/180 - Add the two like fractions:
81/180 + 720/180 = 81 + 720/180 = 801/180 - 801/180 simplified gives 89/20
- So, 9/20 + 72/18 = 89/20
In mixed form: 49/20
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