Add 90/45 and 20/18
1st number: 2 0/45, 2nd number: 1 2/18
90/45 + 20/18 is 28/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
90/45 = 90 × 2/45 × 2 = 180/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
20/18 = 20 × 5/18 × 5 = 100/90 - Add the two like fractions:
180/90 + 100/90 = 180 + 100/90 = 280/90 - 280/90 simplified gives 28/9
- So, 90/45 + 20/18 = 28/9
In mixed form: 31/9
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