Answers

Add 80/45 and 45/70

1^st number: 1 35/45, 2^nd number: 45/70

80/45 + 45/70 is 305/126.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 70 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 45 × 14 = 630,
   80/45 = 80 × 14/45 × 14 = 1120/630
3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
   45/70 = 45 × 9/70 × 9 = 405/630
4. Add the two like fractions:
   1120/630 + 405/630 = 1120 + 405/630 = 1525/630
5. 1525/630 simplified gives 305/126
6. So, 80/45 + 45/70 = 305/126
   In mixed form: 253/126

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