Answers

Add 72/98 and 45/25

1^st number: 72/98, 2^nd number: 1 20/25

72/98 + 45/25 is 621/245.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 25 is 2450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2450
2. For the 1st fraction, since 98 × 25 = 2450,
   72/98 = 72 × 25/98 × 25 = 1800/2450
3. Likewise, for the 2nd fraction, since 25 × 98 = 2450,
   45/25 = 45 × 98/25 × 98 = 4410/2450
4. Add the two like fractions:
   1800/2450 + 4410/2450 = 1800 + 4410/2450 = 6210/2450
5. 6210/2450 simplified gives 621/245
6. So, 72/98 + 45/25 = 621/245
   In mixed form: 2131/245

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