Answers

Add 75/40 and 21/72

1^st number: 1 35/40, 2^nd number: 21/72

75/40 + 21/72 is 13/6.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 40 × 9 = 360,
   75/40 = 75 × 9/40 × 9 = 675/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   21/72 = 21 × 5/72 × 5 = 105/360
4. Add the two like fractions:
   675/360 + 105/360 = 675 + 105/360 = 780/360
5. 780/360 simplified gives 13/6
6. So, 75/40 + 21/72 = 13/6
   In mixed form: 21/6

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