Answers

Add 42/20 and 72/35

1^st number: 2 2/20, 2^nd number: 2 2/35

42/20 + 72/35 is 291/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 35 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 20 × 7 = 140,
   42/20 = 42 × 7/20 × 7 = 294/140
3. Likewise, for the 2nd fraction, since 35 × 4 = 140,
   72/35 = 72 × 4/35 × 4 = 288/140
4. Add the two like fractions:
   294/140 + 288/140 = 294 + 288/140 = 582/140
5. 582/140 simplified gives 291/70
6. So, 42/20 + 72/35 = 291/70
   In mixed form: 411/70

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