Answers

Add 28/80 and 90/56

1^st number: 28/80, 2^nd number: 1 34/56

28/80 + 90/56 is 137/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 56 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 80 × 7 = 560,
   28/80 = 28 × 7/80 × 7 = 196/560
3. Likewise, for the 2nd fraction, since 56 × 10 = 560,
   90/56 = 90 × 10/56 × 10 = 900/560
4. Add the two like fractions:
   196/560 + 900/560 = 196 + 900/560 = 1096/560
5. 1096/560 simplified gives 137/70
6. So, 28/80 + 90/56 = 137/70
   In mixed form: 167/70

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