Answers

Add 70/84 and 27/80

70/84 + 27/80 is 281/240.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 80 is 1680
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1680
2. For the 1st fraction, since 84 × 20 = 1680,
   70/84 = 70 × 20/84 × 20 = 1400/1680
3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
   27/80 = 27 × 21/80 × 21 = 567/1680
4. Add the two like fractions:
   1400/1680 + 567/1680 = 1400 + 567/1680 = 1967/1680
5. 1967/1680 simplified gives 281/240
6. So, 70/84 + 27/80 = 281/240
   In mixed form: 141/240

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