Answers

Add 70/12 and 90/45

1^st number: 5 10/12, 2^nd number: 2 0/45

70/12 + 90/45 is 47/6.

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,
   90/45 = 90 × 4/45 × 4 = 360/180
4. Add the two like fractions:
   1050/180 + 360/180 = 1050 + 360/180 = 1410/180
5. 1410/180 simplified gives 47/6
6. So, 70/12 + 90/45 = 47/6
   In mixed form: 75/6

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