Add 21/6 and 28/80
1st number: 3 3/6, 2nd number: 28/80
21/6 + 28/80 is 77/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 6 × 40 = 240,
21/6 = 21 × 40/6 × 40 = 840/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
28/80 = 28 × 3/80 × 3 = 84/240 - Add the two like fractions:
840/240 + 84/240 = 840 + 84/240 = 924/240 - 924/240 simplified gives 77/20
- So, 21/6 + 28/80 = 77/20
In mixed form: 317/20
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