Answers

Add 7/70 and 80/40

1^st number: 7/70, 2^nd number: 2 0/40

7/70 + 80/40 is 21/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 40 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 70 × 4 = 280,
   7/70 = 7 × 4/70 × 4 = 28/280
3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
   80/40 = 80 × 7/40 × 7 = 560/280
4. Add the two like fractions:
   28/280 + 560/280 = 28 + 560/280 = 588/280
5. 588/280 simplified gives 21/10
6. So, 7/70 + 80/40 = 21/10
   In mixed form: 21/10

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