Answers

Add 70/18 and 45/40

1^st number: 3 16/18, 2^nd number: 1 5/40

70/18 + 45/40 is 361/72.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 40 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 18 × 20 = 360,
   70/18 = 70 × 20/18 × 20 = 1400/360
3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
   45/40 = 45 × 9/40 × 9 = 405/360
4. Add the two like fractions:
   1400/360 + 405/360 = 1400 + 405/360 = 1805/360
5. 1805/360 simplified gives 361/72
6. So, 70/18 + 45/40 = 361/72
   In mixed form: 51/72

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