Answers

Add 75/84 and 3/70

75/84 + 3/70 is 131/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 70 is 420
2. For the 1st fraction, since 84 × 5 = 420,
   75/84 = 75 × 5/84 × 5 = 375/420
3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
   3/70 = 3 × 6/70 × 6 = 18/420
4. Add the two fractions:
   375/420 + 18/420 = 375 + 18/420 = 393/420
5. 393/420 simplified gives 131/140
6. So, 75/84 + 3/70 = 131/140

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