Add 27/9 and 90/40
1st number: 3 0/9, 2nd number: 2 10/40
27/9 + 90/40 is 21/4.
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,
27/9 = 27 × 40/9 × 40 = 1080/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
90/40 = 90 × 9/40 × 9 = 810/360 - Add the two like fractions:
1080/360 + 810/360 = 1080 + 810/360 = 1890/360 - 1890/360 simplified gives 21/4
- So, 27/9 + 90/40 = 21/4
In mixed form: 51/4
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