Answers

Add 15/56 and 16/70

15/56 + 16/70 is 139/280.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 70 is 280
2. For the 1st fraction, since 56 × 5 = 280,
   15/56 = 15 × 5/56 × 5 = 75/280
3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
   16/70 = 16 × 4/70 × 4 = 64/280
4. Add the two fractions:
   75/280 + 64/280 = 75 + 64/280 = 139/280

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