Answers

Add 80/30 and 98/21

1^st number: 2 20/30, 2^nd number: 4 14/21

80/30 + 98/21 is 22/3.

Steps for adding fractions

1. 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
2. For the 1st fraction, since 30 × 7 = 210,
   80/30 = 80 × 7/30 × 7 = 560/210
3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
   98/21 = 98 × 10/21 × 10 = 980/210
4. Add the two like fractions:
   560/210 + 980/210 = 560 + 980/210 = 1540/210
5. 1540/210 simplified gives 22/3
6. So, 80/30 + 98/21 = 22/3
   In mixed form: 71/3

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