Add 20/60 and 45/70
20/60 + 45/70 is 41/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 70 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 70 × 6 = 420,
45/70 = 45 × 6/70 × 6 = 270/420 - Add the two like fractions:
140/420 + 270/420 = 140 + 270/420 = 410/420 - 410/420 simplified gives 41/42
- So, 20/60 + 45/70 = 41/42
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