Answers

Add 28/70 and 56/80

28/70 + 56/80 is 11/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 70 × 8 = 560,
   28/70 = 28 × 8/70 × 8 = 224/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   56/80 = 56 × 7/80 × 7 = 392/560
4. Add the two like fractions:
   224/560 + 392/560 = 224 + 392/560 = 616/560
5. 616/560 simplified gives 11/10
6. So, 28/70 + 56/80 = 11/10
   In mixed form: 11/10

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