Add 84/42 and 80/40
1st number: 2 0/42, 2nd number: 2 0/40
84/42 + 80/40 is 4/1.
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,
84/42 = 84 × 20/42 × 20 = 1680/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
80/40 = 80 × 21/40 × 21 = 1680/840 - Add the two like fractions:
1680/840 + 1680/840 = 1680 + 1680/840 = 3360/840 - 3360/840 simplified gives 4/1
- So, 84/42 + 80/40 = 4/1
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