Answers

Add 15/70 and 45/40

1^st number: 15/70, 2^nd number: 1 5/40

15/70 + 45/40 is 75/56.

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,
   15/70 = 15 × 4/70 × 4 = 60/280
3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
   45/40 = 45 × 7/40 × 7 = 315/280
4. Add the two like fractions:
   60/280 + 315/280 = 60 + 315/280 = 375/280
5. 375/280 simplified gives 75/56
6. So, 15/70 + 45/40 = 75/56
   In mixed form: 119/56

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