Answers

Add 98/40 and 98/21

1^st number: 2 18/40, 2^nd number: 4 14/21

98/40 + 98/21 is 427/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 21 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 40 × 21 = 840,
   98/40 = 98 × 21/40 × 21 = 2058/840
3. Likewise, for the 2nd fraction, since 21 × 40 = 840,
   98/21 = 98 × 40/21 × 40 = 3920/840
4. Add the two like fractions:
   2058/840 + 3920/840 = 2058 + 3920/840 = 5978/840
5. 5978/840 simplified gives 427/60
6. So, 98/40 + 98/21 = 427/60
   In mixed form: 77/60

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