Add 80/30 and 90/84
1st number: 2 20/30, 2nd number: 1 6/84
80/30 + 90/84 is 157/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
80/30 = 80 × 14/30 × 14 = 1120/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
90/84 = 90 × 5/84 × 5 = 450/420 - Add the two like fractions:
1120/420 + 450/420 = 1120 + 450/420 = 1570/420 - 1570/420 simplified gives 157/42
- So, 80/30 + 90/84 = 157/42
In mixed form: 331/42
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