Answers

Add 72/10 and 42/56

1^st number: 7 2/10, 2^nd number: 42/56

72/10 + 42/56 is 159/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 56 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 10 × 28 = 280,
   72/10 = 72 × 28/10 × 28 = 2016/280
3. Likewise, for the 2nd fraction, since 56 × 5 = 280,
   42/56 = 42 × 5/56 × 5 = 210/280
4. Add the two like fractions:
   2016/280 + 210/280 = 2016 + 210/280 = 2226/280
5. 2226/280 simplified gives 159/20
6. So, 72/10 + 42/56 = 159/20
   In mixed form: 719/20

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