Add 28/42 and 84/40
1st number: 28/42, 2nd number: 2 4/40
28/42 + 84/40 is 83/30.
Steps for adding fractions
- 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 - For the 1st fraction, since 42 × 20 = 840,
28/42 = 28 × 20/42 × 20 = 560/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
84/40 = 84 × 21/40 × 21 = 1764/840 - Add the two like fractions:
560/840 + 1764/840 = 560 + 1764/840 = 2324/840 - 2324/840 simplified gives 83/30
- So, 28/42 + 84/40 = 83/30
In mixed form: 223/30
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