Answers

Add 15/56 and 9/80

15/56 + 9/80 is 213/560.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 80 is 560
2. For the 1st fraction, since 56 × 10 = 560,
   15/56 = 15 × 10/56 × 10 = 150/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   9/80 = 9 × 7/80 × 7 = 63/560
4. Add the two fractions:
   150/560 + 63/560 = 150 + 63/560 = 213/560
5. So, 15/56 + 9/80 = 213/560

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