Answers

Add 45/18 and 72/35

1^st number: 2 9/18, 2^nd number: 2 2/35

45/18 + 72/35 is 319/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 35 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 18 × 35 = 630,
   45/18 = 45 × 35/18 × 35 = 1575/630
3. Likewise, for the 2nd fraction, since 35 × 18 = 630,
   72/35 = 72 × 18/35 × 18 = 1296/630
4. Add the two like fractions:
   1575/630 + 1296/630 = 1575 + 1296/630 = 2871/630
5. 2871/630 simplified gives 319/70
6. So, 45/18 + 72/35 = 319/70
   In mixed form: 439/70

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