Add 12/45 and 21/9
1st number: 12/45, 2nd number: 2 3/9
12/45 + 21/9 is 13/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
12/45 = 12 × 1/45 × 1 = 12/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
21/9 = 21 × 5/9 × 5 = 105/45 - Add the two like fractions:
12/45 + 105/45 = 12 + 105/45 = 117/45 - 117/45 simplified gives 13/5
- So, 12/45 + 21/9 = 13/5
In mixed form: 23/5
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