Add 20/18 and 25/45
1st number: 1 2/18, 2nd number: 25/45
20/18 + 25/45 is 5/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
20/18 = 20 × 5/18 × 5 = 100/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
25/45 = 25 × 2/45 × 2 = 50/90 - Add the two like fractions:
100/90 + 50/90 = 100 + 50/90 = 150/90 - 150/90 simplified gives 5/3
- So, 20/18 + 25/45 = 5/3
In mixed form: 12/3
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