Add 18/30 and 70/80
18/30 + 70/80 is 59/40.
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,
18/30 = 18 × 8/30 × 8 = 144/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
70/80 = 70 × 3/80 × 3 = 210/240 - Add the two like fractions:
144/240 + 210/240 = 144 + 210/240 = 354/240 - 354/240 simplified gives 59/40
- So, 18/30 + 70/80 = 59/40
In mixed form: 119/40
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