Add 28/5 and 90/84
1st number: 5 3/5, 2nd number: 1 6/84
28/5 + 90/84 is 467/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 5 × 84 = 420,
28/5 = 28 × 84/5 × 84 = 2352/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
90/84 = 90 × 5/84 × 5 = 450/420 - Add the two like fractions:
2352/420 + 450/420 = 2352 + 450/420 = 2802/420 - 2802/420 simplified gives 467/70
- So, 28/5 + 90/84 = 467/70
In mixed form: 647/70
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