Add 20/18 and 64/45
1st number: 1 2/18, 2nd number: 1 19/45
20/18 + 64/45 is 38/15.
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,
64/45 = 64 × 2/45 × 2 = 128/90 - Add the two like fractions:
100/90 + 128/90 = 100 + 128/90 = 228/90 - 228/90 simplified gives 38/15
- So, 20/18 + 64/45 = 38/15
In mixed form: 28/15
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