Answers

Add 48/42 and 28/40

1^st number: 1 6/42, 2^nd number: 28/40

48/42 + 28/40 is 129/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 40 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 42 × 20 = 840,
   48/42 = 48 × 20/42 × 20 = 960/840
3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
   28/40 = 28 × 21/40 × 21 = 588/840
4. Add the two like fractions:
   960/840 + 588/840 = 960 + 588/840 = 1548/840
5. 1548/840 simplified gives 129/70
6. So, 48/42 + 28/40 = 129/70
   In mixed form: 159/70

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