Answers

Add 81/60 and 16/70

1^st number: 1 21/60, 2^nd number: 16/70

81/60 + 16/70 is 221/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 70 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 60 × 7 = 420,
   81/60 = 81 × 7/60 × 7 = 567/420
3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
   16/70 = 16 × 6/70 × 6 = 96/420
4. Add the two like fractions:
   567/420 + 96/420 = 567 + 96/420 = 663/420
5. 663/420 simplified gives 221/140
6. So, 81/60 + 16/70 = 221/140
   In mixed form: 181/140

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