Answers

Add 84/28 and 14/80

1^st number: 3 0/28, 2^nd number: 14/80

84/28 + 14/80 is 127/40.

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,
   84/28 = 84 × 20/28 × 20 = 1680/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   14/80 = 14 × 7/80 × 7 = 98/560
4. Add the two like fractions:
   1680/560 + 98/560 = 1680 + 98/560 = 1778/560
5. 1778/560 simplified gives 127/40
6. So, 84/28 + 14/80 = 127/40
   In mixed form: 37/40

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