Add 12/80 and 42/9
1st number: 12/80, 2nd number: 4 6/9
12/80 + 42/9 is 289/60.
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,
12/80 = 12 × 9/80 × 9 = 108/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
42/9 = 42 × 80/9 × 80 = 3360/720 - Add the two like fractions:
108/720 + 3360/720 = 108 + 3360/720 = 3468/720 - 3468/720 simplified gives 289/60
- So, 12/80 + 42/9 = 289/60
In mixed form: 449/60
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