Add 18/60 and 70/80
18/60 + 70/80 is 47/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 60 × 4 = 240,
18/60 = 18 × 4/60 × 4 = 72/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
70/80 = 70 × 3/80 × 3 = 210/240 - Add the two like fractions:
72/240 + 210/240 = 72 + 210/240 = 282/240 - 282/240 simplified gives 47/40
- So, 18/60 + 70/80 = 47/40
In mixed form: 17/40
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