Add 12/80 and 75/45
1st number: 12/80, 2nd number: 1 30/45
12/80 + 75/45 is 109/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 45 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 45 × 16 = 720,
75/45 = 75 × 16/45 × 16 = 1200/720 - Add the two like fractions:
108/720 + 1200/720 = 108 + 1200/720 = 1308/720 - 1308/720 simplified gives 109/60
- So, 12/80 + 75/45 = 109/60
In mixed form: 149/60
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