Answers

Add 64/49 and 56/20

1^st number: 1 15/49, 2^nd number: 2 16/20

64/49 + 56/20 is 1006/245.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 20 is 980
   
   Next, find the equivalent fraction of both fractional numbers with denominator 980
2. For the 1st fraction, since 49 × 20 = 980,
   64/49 = 64 × 20/49 × 20 = 1280/980
3. Likewise, for the 2nd fraction, since 20 × 49 = 980,
   56/20 = 56 × 49/20 × 49 = 2744/980
4. Add the two like fractions:
   1280/980 + 2744/980 = 1280 + 2744/980 = 4024/980
5. 4024/980 simplified gives 1006/245
6. So, 64/49 + 56/20 = 1006/245
   In mixed form: 426/245

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