Add 18/80 and 70/9
1st number: 18/80, 2nd number: 7 7/9
18/80 + 70/9 is 2881/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
18/80 = 18 × 9/80 × 9 = 162/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
70/9 = 70 × 80/9 × 80 = 5600/720 - Add the two like fractions:
162/720 + 5600/720 = 162 + 5600/720 = 5762/720 - 5762/720 simplified gives 2881/360
- So, 18/80 + 70/9 = 2881/360
In mixed form: 81/360
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