Answers

Add 35/27 and 72/20

1^st number: 1 8/27, 2^nd number: 3 12/20

35/27 + 72/20 is 661/135.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 20 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 27 × 20 = 540,
   35/27 = 35 × 20/27 × 20 = 700/540
3. Likewise, for the 2nd fraction, since 20 × 27 = 540,
   72/20 = 72 × 27/20 × 27 = 1944/540
4. Add the two like fractions:
   700/540 + 1944/540 = 700 + 1944/540 = 2644/540
5. 2644/540 simplified gives 661/135
6. So, 35/27 + 72/20 = 661/135
   In mixed form: 4121/135

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