Answers

Add 72/20 and 40/56

1^st number: 3 12/20, 2^nd number: 40/56

72/20 + 40/56 is 151/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 56 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 20 × 14 = 280,
   72/20 = 72 × 14/20 × 14 = 1008/280
3. Likewise, for the 2nd fraction, since 56 × 5 = 280,
   40/56 = 40 × 5/56 × 5 = 200/280
4. Add the two like fractions:
   1008/280 + 200/280 = 1008 + 200/280 = 1208/280
5. 1208/280 simplified gives 151/35
6. So, 72/20 + 40/56 = 151/35
   In mixed form: 411/35

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