Answers

Add 54/56 and 42/30

1^st number: 54/56, 2^nd number: 1 12/30

54/56 + 42/30 is 331/140.

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,
   54/56 = 54 × 15/56 × 15 = 810/840
3. Likewise, for the 2nd fraction, since 30 × 28 = 840,
   42/30 = 42 × 28/30 × 28 = 1176/840
4. Add the two like fractions:
   810/840 + 1176/840 = 810 + 1176/840 = 1986/840
5. 1986/840 simplified gives 331/140
6. So, 54/56 + 42/30 = 331/140
   In mixed form: 251/140

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