Add 6/40 and 81/42
1st number: 6/40, 2nd number: 1 39/42
6/40 + 81/42 is 291/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 42 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
6/40 = 6 × 21/40 × 21 = 126/840 - Likewise, for the 2nd fraction, since 42 × 20 = 840,
81/42 = 81 × 20/42 × 20 = 1620/840 - Add the two like fractions:
126/840 + 1620/840 = 126 + 1620/840 = 1746/840 - 1746/840 simplified gives 291/140
- So, 6/40 + 81/42 = 291/140
In mixed form: 211/140
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