Answers

Add 70/72 and 42/30

1^st number: 70/72, 2^nd number: 1 12/30

70/72 + 42/30 is 427/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 30 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   70/72 = 70 × 5/72 × 5 = 350/360
3. Likewise, for the 2nd fraction, since 30 × 12 = 360,
   42/30 = 42 × 12/30 × 12 = 504/360
4. Add the two like fractions:
   350/360 + 504/360 = 350 + 504/360 = 854/360
5. 854/360 simplified gives 427/180
6. So, 70/72 + 42/30 = 427/180
   In mixed form: 267/180

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