Add 21/20 and 84/49
1st number: 1 1/20, 2nd number: 1 35/49
21/20 + 84/49 is 387/140.
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,
21/20 = 21 × 49/20 × 49 = 1029/980 - Likewise, for the 2nd fraction, since 49 × 20 = 980,
84/49 = 84 × 20/49 × 20 = 1680/980 - Add the two like fractions:
1029/980 + 1680/980 = 1029 + 1680/980 = 2709/980 - 2709/980 simplified gives 387/140
- So, 21/20 + 84/49 = 387/140
In mixed form: 2107/140
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