Answers

Add 70/12 and 81/45

1^st number: 5 10/12, 2^nd number: 1 36/45

70/12 + 81/45 is 229/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 45 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 12 × 15 = 180,
   70/12 = 70 × 15/12 × 15 = 1050/180
3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
   81/45 = 81 × 4/45 × 4 = 324/180
4. Add the two like fractions:
   1050/180 + 324/180 = 1050 + 324/180 = 1374/180
5. 1374/180 simplified gives 229/30
6. So, 70/12 + 81/45 = 229/30
   In mixed form: 719/30

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