Add 40/42 and 4/7
40/42 + 4/7 is 32/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
40/42 = 40 × 1/42 × 1 = 40/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
4/7 = 4 × 6/7 × 6 = 24/42 - Add the two like fractions:
40/42 + 24/42 = 40 + 24/42 = 64/42 - 64/42 simplified gives 32/21
- So, 40/42 + 4/7 = 32/21
In mixed form: 111/21
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