Answers

Add 30/40 and 72/45

1^st number: 30/40, 2^nd number: 1 27/45

30/40 + 72/45 is 47/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 45 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 40 × 9 = 360,
   30/40 = 30 × 9/40 × 9 = 270/360
3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
   72/45 = 72 × 8/45 × 8 = 576/360
4. Add the two like fractions:
   270/360 + 576/360 = 270 + 576/360 = 846/360
5. 846/360 simplified gives 47/20
6. So, 30/40 + 72/45 = 47/20
   In mixed form: 27/20

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