Add 81/9 and 30/40
1st number: 9 0/9, 2nd number: 30/40
81/9 + 30/40 is 39/4.
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,
81/9 = 81 × 40/9 × 40 = 3240/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
30/40 = 30 × 9/40 × 9 = 270/360 - Add the two like fractions:
3240/360 + 270/360 = 3240 + 270/360 = 3510/360 - 3510/360 simplified gives 39/4
- So, 81/9 + 30/40 = 39/4
In mixed form: 93/4
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