Add 30/84 and 81/60
1st number: 30/84, 2nd number: 1 21/60
30/84 + 81/60 is 239/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
30/84 = 30 × 5/84 × 5 = 150/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
81/60 = 81 × 7/60 × 7 = 567/420 - Add the two like fractions:
150/420 + 567/420 = 150 + 567/420 = 717/420 - 717/420 simplified gives 239/140
- So, 30/84 + 81/60 = 239/140
In mixed form: 199/140
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