Add 5/20 and 42/49
5/20 + 42/49 is 31/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 49 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
5/20 = 5 × 49/20 × 49 = 245/980 - Likewise, for the 2nd fraction, since 49 × 20 = 980,
42/49 = 42 × 20/49 × 20 = 840/980 - Add the two like fractions:
245/980 + 840/980 = 245 + 840/980 = 1085/980 - 1085/980 simplified gives 31/28
- So, 5/20 + 42/49 = 31/28
In mixed form: 13/28
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