Add 98/30 and 80/21
1st number: 3 8/30, 2nd number: 3 17/21
98/30 + 80/21 is 743/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
98/30 = 98 × 7/30 × 7 = 686/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
80/21 = 80 × 10/21 × 10 = 800/210 - Add the two like fractions:
686/210 + 800/210 = 686 + 800/210 = 1486/210 - 1486/210 simplified gives 743/105
- So, 98/30 + 80/21 = 743/105
In mixed form: 78/105
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