Answers

Add 30/72 and 42/40

1^st number: 30/72, 2^nd number: 1 2/40

30/72 + 42/40 is 22/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 40 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   30/72 = 30 × 5/72 × 5 = 150/360
3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
   42/40 = 42 × 9/40 × 9 = 378/360
4. Add the two like fractions:
   150/360 + 378/360 = 150 + 378/360 = 528/360
5. 528/360 simplified gives 22/15
6. So, 30/72 + 42/40 = 22/15
   In mixed form: 17/15

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