Add 45/30 and 18/80
1st number: 1 15/30, 2nd number: 18/80
45/30 + 18/80 is 69/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
45/30 = 45 × 8/30 × 8 = 360/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
18/80 = 18 × 3/80 × 3 = 54/240 - Add the two like fractions:
360/240 + 54/240 = 360 + 54/240 = 414/240 - 414/240 simplified gives 69/40
- So, 45/30 + 18/80 = 69/40
In mixed form: 129/40
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