Add 18/84 and 42/35
1st number: 18/84, 2nd number: 1 7/35
18/84 + 42/35 is 99/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 35 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
18/84 = 18 × 5/84 × 5 = 90/420 - Likewise, for the 2nd fraction, since 35 × 12 = 420,
42/35 = 42 × 12/35 × 12 = 504/420 - Add the two like fractions:
90/420 + 504/420 = 90 + 504/420 = 594/420 - 594/420 simplified gives 99/70
- So, 18/84 + 42/35 = 99/70
In mixed form: 129/70
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