Answers

Add 72/98 and 84/10

1^st number: 72/98, 2^nd number: 8 4/10

72/98 + 84/10 is 2238/245.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 10 is 490
   
   Next, find the equivalent fraction of both fractional numbers with denominator 490
2. For the 1st fraction, since 98 × 5 = 490,
   72/98 = 72 × 5/98 × 5 = 360/490
3. Likewise, for the 2nd fraction, since 10 × 49 = 490,
   84/10 = 84 × 49/10 × 49 = 4116/490
4. Add the two like fractions:
   360/490 + 4116/490 = 360 + 4116/490 = 4476/490
5. 4476/490 simplified gives 2238/245
6. So, 72/98 + 84/10 = 2238/245
   In mixed form: 933/245

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