Answers

Add 48/40 and 42/84

1^st number: 1 8/40, 2^nd number: 42/84

48/40 + 42/84 is 17/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 84 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 40 × 21 = 840,
   48/40 = 48 × 21/40 × 21 = 1008/840
3. Likewise, for the 2nd fraction, since 84 × 10 = 840,
   42/84 = 42 × 10/84 × 10 = 420/840
4. Add the two like fractions:
   1008/840 + 420/840 = 1008 + 420/840 = 1428/840
5. 1428/840 simplified gives 17/10
6. So, 48/40 + 42/84 = 17/10
   In mixed form: 17/10

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