Answers

Add 72/56 and 90/30

1^st number: 1 16/56, 2^nd number: 3 0/30

72/56 + 90/30 is 30/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 30 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 56 × 15 = 840,
   72/56 = 72 × 15/56 × 15 = 1080/840
3. Likewise, for the 2nd fraction, since 30 × 28 = 840,
   90/30 = 90 × 28/30 × 28 = 2520/840
4. Add the two like fractions:
   1080/840 + 2520/840 = 1080 + 2520/840 = 3600/840
5. 3600/840 simplified gives 30/7
6. So, 72/56 + 90/30 = 30/7
   In mixed form: 42/7

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