Add 28/42 and 2/20
28/42 + 2/20 is 23/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
28/42 = 28 × 10/42 × 10 = 280/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
2/20 = 2 × 21/20 × 21 = 42/420 - Add the two like fractions:
280/420 + 42/420 = 280 + 42/420 = 322/420 - 322/420 simplified gives 23/30
- So, 28/42 + 2/20 = 23/30
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