Answers

Add 80/20 and 12/70

1^st number: 4 0/20, 2^nd number: 12/70

80/20 + 12/70 is 146/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 70 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 20 × 7 = 140,
   80/20 = 80 × 7/20 × 7 = 560/140
3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
   12/70 = 12 × 2/70 × 2 = 24/140
4. Add the two like fractions:
   560/140 + 24/140 = 560 + 24/140 = 584/140
5. 584/140 simplified gives 146/35
6. So, 80/20 + 12/70 = 146/35
   In mixed form: 46/35

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