Add 80/21 and 60/9
1st number: 3 17/21, 2nd number: 6 6/9
80/21 + 60/9 is 220/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
80/21 = 80 × 3/21 × 3 = 240/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
60/9 = 60 × 7/9 × 7 = 420/63 - Add the two like fractions:
240/63 + 420/63 = 240 + 420/63 = 660/63 - 660/63 simplified gives 220/21
- So, 80/21 + 60/9 = 220/21
In mixed form: 1010/21
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