Answers

Add 10/84 and 56/40

1^st number: 10/84, 2^nd number: 1 16/40

10/84 + 56/40 is 319/210.

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,
   10/84 = 10 × 10/84 × 10 = 100/840
3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
   56/40 = 56 × 21/40 × 21 = 1176/840
4. Add the two like fractions:
   100/840 + 1176/840 = 100 + 1176/840 = 1276/840
5. 1276/840 simplified gives 319/210
6. So, 10/84 + 56/40 = 319/210
   In mixed form: 1109/210

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