Answers

Add 30/40 and 80/70

1^st number: 30/40, 2^nd number: 1 10/70

30/40 + 80/70 is 53/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 70 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 40 × 7 = 280,
   30/40 = 30 × 7/40 × 7 = 210/280
3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
   80/70 = 80 × 4/70 × 4 = 320/280
4. Add the two like fractions:
   210/280 + 320/280 = 210 + 320/280 = 530/280
5. 530/280 simplified gives 53/28
6. So, 30/40 + 80/70 = 53/28
   In mixed form: 125/28

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