Add 21/45 and 18/9
1st number: 21/45, 2nd number: 2 0/9
21/45 + 18/9 is 37/15.
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,
21/45 = 21 × 1/45 × 1 = 21/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
18/9 = 18 × 5/9 × 5 = 90/45 - Add the two like fractions:
21/45 + 90/45 = 21 + 90/45 = 111/45 - 111/45 simplified gives 37/15
- So, 21/45 + 18/9 = 37/15
In mixed form: 27/15
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