Add 21/84 and 98/30
1st number: 21/84, 2nd number: 3 8/30
21/84 + 98/30 is 211/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
21/84 = 21 × 5/84 × 5 = 105/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
98/30 = 98 × 14/30 × 14 = 1372/420 - Add the two like fractions:
105/420 + 1372/420 = 105 + 1372/420 = 1477/420 - 1477/420 simplified gives 211/60
- So, 21/84 + 98/30 = 211/60
In mixed form: 331/60
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