Add 75/80 and 63/18
1st number: 75/80, 2nd number: 3 9/18
75/80 + 63/18 is 71/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 18 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
75/80 = 75 × 9/80 × 9 = 675/720 - Likewise, for the 2nd fraction, since 18 × 40 = 720,
63/18 = 63 × 40/18 × 40 = 2520/720 - Add the two like fractions:
675/720 + 2520/720 = 675 + 2520/720 = 3195/720 - 3195/720 simplified gives 71/16
- So, 75/80 + 63/18 = 71/16
In mixed form: 47/16
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