Answers

Add 30/42 and 72/40

1^st number: 30/42, 2^nd number: 1 32/40

30/42 + 72/40 is 88/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 40 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 42 × 20 = 840,
   30/42 = 30 × 20/42 × 20 = 600/840
3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
   72/40 = 72 × 21/40 × 21 = 1512/840
4. Add the two like fractions:
   600/840 + 1512/840 = 600 + 1512/840 = 2112/840
5. 2112/840 simplified gives 88/35
6. So, 30/42 + 72/40 = 88/35
   In mixed form: 218/35

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