Answers

Add 27/20 and 75/84

1^st number: 1 7/20, 2^nd number: 75/84

27/20 + 75/84 is 157/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 20 × 21 = 420,
   27/20 = 27 × 21/20 × 21 = 567/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   75/84 = 75 × 5/84 × 5 = 375/420
4. Add the two like fractions:
   567/420 + 375/420 = 567 + 375/420 = 942/420
5. 942/420 simplified gives 157/70
6. So, 27/20 + 75/84 = 157/70
   In mixed form: 217/70

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