Answers

Add 70/18 and 42/40

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

70/18 + 42/40 is 889/180.

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,
   42/40 = 42 × 9/40 × 9 = 378/360
4. Add the two like fractions:
   1400/360 + 378/360 = 1400 + 378/360 = 1778/360
5. 1778/360 simplified gives 889/180
6. So, 70/18 + 42/40 = 889/180
   In mixed form: 4169/180

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