Answers

Add 2/90 and 15/80

2/90 + 15/80 is 151/720.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 80 is 720
2. For the 1st fraction, since 90 × 8 = 720,
   2/90 = 2 × 8/90 × 8 = 16/720
3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
   15/80 = 15 × 9/80 × 9 = 135/720
4. Add the two fractions:
   16/720 + 135/720 = 16 + 135/720 = 151/720

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