Answers

Add 80/4 and 70/49

1^st number: 20 0/4, 2^nd number: 1 21/49

80/4 + 70/49 is 150/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 49 is 196
   
   Next, find the equivalent fraction of both fractional numbers with denominator 196
2. For the 1st fraction, since 4 × 49 = 196,
   80/4 = 80 × 49/4 × 49 = 3920/196
3. Likewise, for the 2nd fraction, since 49 × 4 = 196,
   70/49 = 70 × 4/49 × 4 = 280/196
4. Add the two like fractions:
   3920/196 + 280/196 = 3920 + 280/196 = 4200/196
5. 4200/196 simplified gives 150/7
6. So, 80/4 + 70/49 = 150/7
   In mixed form: 213/7

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