Answers

Add 15/84 and 14/40

15/84 + 14/40 is 37/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 40 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 84 × 10 = 840,
   15/84 = 15 × 10/84 × 10 = 150/840
3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
   14/40 = 14 × 21/40 × 21 = 294/840
4. Add the two like fractions:
   150/840 + 294/840 = 150 + 294/840 = 444/840
5. 444/840 simplified gives 37/70
6. So, 15/84 + 14/40 = 37/70

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