Add 18/10 and 12/45
1st number: 1 8/10, 2nd number: 12/45
18/10 + 12/45 is 31/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
18/10 = 18 × 9/10 × 9 = 162/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
12/45 = 12 × 2/45 × 2 = 24/90 - Add the two like fractions:
162/90 + 24/90 = 162 + 24/90 = 186/90 - 186/90 simplified gives 31/15
- So, 18/10 + 12/45 = 31/15
In mixed form: 21/15
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