Add 20/18 and 18/45
1st number: 1 2/18, 2nd number: 18/45
20/18 + 18/45 is 68/45.
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,
18/45 = 18 × 2/45 × 2 = 36/90 - Add the two like fractions:
100/90 + 36/90 = 100 + 36/90 = 136/90 - 136/90 simplified gives 68/45
- So, 20/18 + 18/45 = 68/45
In mixed form: 123/45
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