Answers

Add 4/28 and 98/80

1^st number: 4/28, 2^nd number: 1 18/80

4/28 + 98/80 is 383/280.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 28 × 20 = 560,
   4/28 = 4 × 20/28 × 20 = 80/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   98/80 = 98 × 7/80 × 7 = 686/560
4. Add the two like fractions:
   80/560 + 686/560 = 80 + 686/560 = 766/560
5. 766/560 simplified gives 383/280
6. So, 4/28 + 98/80 = 383/280
   In mixed form: 1103/280

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