Add 72/9 and 20/40
1st number: 8 0/9, 2nd number: 20/40
72/9 + 20/40 is 17/2.
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,
72/9 = 72 × 40/9 × 40 = 2880/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
20/40 = 20 × 9/40 × 9 = 180/360 - Add the two like fractions:
2880/360 + 180/360 = 2880 + 180/360 = 3060/360 - 3060/360 simplified gives 17/2
- So, 72/9 + 20/40 = 17/2
In mixed form: 81/2
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