Answers

Add 15/56 and 7/30

15/56 + 7/30 is 421/840.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 30 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 56 × 15 = 840,
   15/56 = 15 × 15/56 × 15 = 225/840
3. Likewise, for the 2nd fraction, since 30 × 28 = 840,
   7/30 = 7 × 28/30 × 28 = 196/840
4. Add the two like fractions:
   225/840 + 196/840 = 225 + 196/840 = 421/840
5. So, 15/56 + 7/30 = 421/840

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