Add 90/9 and 18/40
1st number: 10 0/9, 2nd number: 18/40
90/9 + 18/40 is 209/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 9 × 40 = 360,
90/9 = 90 × 40/9 × 40 = 3600/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
18/40 = 18 × 9/40 × 9 = 162/360 - Add the two like fractions:
3600/360 + 162/360 = 3600 + 162/360 = 3762/360 - 3762/360 simplified gives 209/20
- So, 90/9 + 18/40 = 209/20
In mixed form: 109/20
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