Answers

Add 1/84 and 80/45

1^st number: 1/84, 2^nd number: 1 35/45

1/84 + 80/45 is 451/252.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 45 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 84 × 15 = 1260,
   1/84 = 1 × 15/84 × 15 = 15/1260
3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
   80/45 = 80 × 28/45 × 28 = 2240/1260
4. Add the two like fractions:
   15/1260 + 2240/1260 = 15 + 2240/1260 = 2255/1260
5. 2255/1260 simplified gives 451/252
6. So, 1/84 + 80/45 = 451/252
   In mixed form: 1199/252

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