Add 20/60 and 40/42
20/60 + 40/42 is 9/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
20/60 = 20 × 7/60 × 7 = 140/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
40/42 = 40 × 10/42 × 10 = 400/420 - Add the two like fractions:
140/420 + 400/420 = 140 + 400/420 = 540/420 - 540/420 simplified gives 9/7
- So, 20/60 + 40/42 = 9/7
In mixed form: 12/7
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