Answers

Add 98/10 and 21/80

1^st number: 9 8/10, 2^nd number: 21/80

98/10 + 21/80 is 161/16.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 10 × 8 = 80,
   98/10 = 98 × 8/10 × 8 = 784/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   21/80 = 21 × 1/80 × 1 = 21/80
4. Add the two like fractions:
   784/80 + 21/80 = 784 + 21/80 = 805/80
5. 805/80 simplified gives 161/16
6. So, 98/10 + 21/80 = 161/16
   In mixed form: 101/16

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