Add 40/20 and 21/49
1st number: 2 0/20, 2nd number: 21/49
40/20 + 21/49 is 17/7.
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,
40/20 = 40 × 49/20 × 49 = 1960/980 - Likewise, for the 2nd fraction, since 49 × 20 = 980,
21/49 = 21 × 20/49 × 20 = 420/980 - Add the two like fractions:
1960/980 + 420/980 = 1960 + 420/980 = 2380/980 - 2380/980 simplified gives 17/7
- So, 40/20 + 21/49 = 17/7
In mixed form: 23/7
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