Add 18/45 and 21/6
1st number: 18/45, 2nd number: 3 3/6
18/45 + 21/6 is 39/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 6 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
18/45 = 18 × 2/45 × 2 = 36/90 - Likewise, for the 2nd fraction, since 6 × 15 = 90,
21/6 = 21 × 15/6 × 15 = 315/90 - Add the two like fractions:
36/90 + 315/90 = 36 + 315/90 = 351/90 - 351/90 simplified gives 39/10
- So, 18/45 + 21/6 = 39/10
In mixed form: 39/10
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