Answers

Add 42/48 and 84/70

1^st number: 42/48, 2^nd number: 1 14/70

42/48 + 84/70 is 83/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 48 and 70 is 1680
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1680
2. For the 1st fraction, since 48 × 35 = 1680,
   42/48 = 42 × 35/48 × 35 = 1470/1680
3. Likewise, for the 2nd fraction, since 70 × 24 = 1680,
   84/70 = 84 × 24/70 × 24 = 2016/1680
4. Add the two like fractions:
   1470/1680 + 2016/1680 = 1470 + 2016/1680 = 3486/1680
5. 3486/1680 simplified gives 83/40
6. So, 42/48 + 84/70 = 83/40
   In mixed form: 23/40

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