Add 18/72 and 15/9
1st number: 18/72, 2nd number: 1 6/9
18/72 + 15/9 is 23/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
18/72 = 18 × 1/72 × 1 = 18/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
15/9 = 15 × 8/9 × 8 = 120/72 - Add the two like fractions:
18/72 + 120/72 = 18 + 120/72 = 138/72 - 138/72 simplified gives 23/12
- So, 18/72 + 15/9 = 23/12
In mixed form: 111/12
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