Answers

Add 42/30 and 15/56

1^st number: 1 12/30, 2^nd number: 15/56

42/30 + 15/56 is 467/280.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 56 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 30 × 28 = 840,
   42/30 = 42 × 28/30 × 28 = 1176/840
3. Likewise, for the 2nd fraction, since 56 × 15 = 840,
   15/56 = 15 × 15/56 × 15 = 225/840
4. Add the two like fractions:
   1176/840 + 225/840 = 1176 + 225/840 = 1401/840
5. 1401/840 simplified gives 467/280
6. So, 42/30 + 15/56 = 467/280
   In mixed form: 1187/280

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