Answers

Add 15/80 and 8/90

15/80 + 8/90 is 199/720.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 90 is 720
2. For the 1st fraction, since 80 × 9 = 720,
   15/80 = 15 × 9/80 × 9 = 135/720
3. Likewise, for the 2nd fraction, since 90 × 8 = 720,
   8/90 = 8 × 8/90 × 8 = 64/720
4. Add the two fractions:
   135/720 + 64/720 = 135 + 64/720 = 199/720
5. So, 15/80 + 8/90 = 199/720

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