Answers

Add 90/24 and 15/45

1^st number: 3 18/24, 2^nd number: 15/45

90/24 + 15/45 is 49/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 45 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 24 × 15 = 360,
   90/24 = 90 × 15/24 × 15 = 1350/360
3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
   15/45 = 15 × 8/45 × 8 = 120/360
4. Add the two like fractions:
   1350/360 + 120/360 = 1350 + 120/360 = 1470/360
5. 1470/360 simplified gives 49/12
6. So, 90/24 + 15/45 = 49/12
   In mixed form: 41/12

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