Answers

Add 54/30 and 70/40

1^st number: 1 24/30, 2^nd number: 1 30/40

54/30 + 70/40 is 71/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 40 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 30 × 4 = 120,
   54/30 = 54 × 4/30 × 4 = 216/120
3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
   70/40 = 70 × 3/40 × 3 = 210/120
4. Add the two like fractions:
   216/120 + 210/120 = 216 + 210/120 = 426/120
5. 426/120 simplified gives 71/20
6. So, 54/30 + 70/40 = 71/20
   In mixed form: 311/20

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