Answers

Add 48/84 and 18/40

48/84 + 18/40 is 143/140.

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,
   48/84 = 48 × 10/84 × 10 = 480/840
3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
   18/40 = 18 × 21/40 × 21 = 378/840
4. Add the two like fractions:
   480/840 + 378/840 = 480 + 378/840 = 858/840
5. 858/840 simplified gives 143/140
6. So, 48/84 + 18/40 = 143/140
   In mixed form: 13/140

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