Answers

Add 40/21 and 30/72

1^st number: 1 19/21, 2^nd number: 30/72

40/21 + 30/72 is 65/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 21 × 24 = 504,
   40/21 = 40 × 24/21 × 24 = 960/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   30/72 = 30 × 7/72 × 7 = 210/504
4. Add the two like fractions:
   960/504 + 210/504 = 960 + 210/504 = 1170/504
5. 1170/504 simplified gives 65/28
6. So, 40/21 + 30/72 = 65/28
   In mixed form: 29/28

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