Add 18/80 and 21/60
18/80 + 21/60 is 23/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 60 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
18/80 = 18 × 3/80 × 3 = 54/240 - Likewise, for the 2nd fraction, since 60 × 4 = 240,
21/60 = 21 × 4/60 × 4 = 84/240 - Add the two like fractions:
54/240 + 84/240 = 54 + 84/240 = 138/240 - 138/240 simplified gives 23/40
- So, 18/80 + 21/60 = 23/40
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