Answers

Add 72/56 and 90/15

1^st number: 1 16/56, 2^nd number: 6 0/15

72/56 + 90/15 is 51/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 15 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 15 × 56 = 840,
   90/15 = 90 × 56/15 × 56 = 5040/840
4. Add the two like fractions:
   1080/840 + 5040/840 = 1080 + 5040/840 = 6120/840
5. 6120/840 simplified gives 51/7
6. So, 72/56 + 90/15 = 51/7
   In mixed form: 72/7

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