Add 21/80 and 18/3
1st number: 21/80, 2nd number: 6 0/3
21/80 + 18/3 is 501/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 3 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
21/80 = 21 × 3/80 × 3 = 63/240 - Likewise, for the 2nd fraction, since 3 × 80 = 240,
18/3 = 18 × 80/3 × 80 = 1440/240 - Add the two like fractions:
63/240 + 1440/240 = 63 + 1440/240 = 1503/240 - 1503/240 simplified gives 501/80
- So, 21/80 + 18/3 = 501/80
In mixed form: 621/80
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