Answers

Add 30/28 and 81/80

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

30/28 + 81/80 is 1167/560.

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,
   30/28 = 30 × 20/28 × 20 = 600/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   81/80 = 81 × 7/80 × 7 = 567/560
4. Add the two like fractions:
   600/560 + 567/560 = 600 + 567/560 = 1167/560
5. So, 30/28 + 81/80 = 1167/560
   In mixed form: 247/560

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