Answers

Add 70/49 and 3/80

1^st number: 1 21/49, 2^nd number: 3/80

70/49 + 3/80 is 821/560.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 80 is 3920
   
   Next, find the equivalent fraction of both fractional numbers with denominator 3920
2. For the 1st fraction, since 49 × 80 = 3920,
   70/49 = 70 × 80/49 × 80 = 5600/3920
3. Likewise, for the 2nd fraction, since 80 × 49 = 3920,
   3/80 = 3 × 49/80 × 49 = 147/3920
4. Add the two like fractions:
   5600/3920 + 147/3920 = 5600 + 147/3920 = 5747/3920
5. 5747/3920 simplified gives 821/560
6. So, 70/49 + 3/80 = 821/560
   In mixed form: 1261/560

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