Answers

Add 81/70 and 60/16

1^st number: 1 11/70, 2^nd number: 3 12/16

81/70 + 60/16 is 687/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 16 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 70 × 8 = 560,
   81/70 = 81 × 8/70 × 8 = 648/560
3. Likewise, for the 2nd fraction, since 16 × 35 = 560,
   60/16 = 60 × 35/16 × 35 = 2100/560
4. Add the two like fractions:
   648/560 + 2100/560 = 648 + 2100/560 = 2748/560
5. 2748/560 simplified gives 687/140
6. So, 81/70 + 60/16 = 687/140
   In mixed form: 4127/140

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