Answers

Add 80/90 and 90/48

1^st number: 80/90, 2^nd number: 1 42/48

80/90 + 90/48 is 199/72.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 48 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 90 × 8 = 720,
   80/90 = 80 × 8/90 × 8 = 640/720
3. Likewise, for the 2nd fraction, since 48 × 15 = 720,
   90/48 = 90 × 15/48 × 15 = 1350/720
4. Add the two like fractions:
   640/720 + 1350/720 = 640 + 1350/720 = 1990/720
5. 1990/720 simplified gives 199/72
6. So, 80/90 + 90/48 = 199/72
   In mixed form: 255/72

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