Add 28/10 and 18/84
1st number: 2 8/10, 2nd number: 18/84
28/10 + 18/84 is 211/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 10 × 42 = 420,
28/10 = 28 × 42/10 × 42 = 1176/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
18/84 = 18 × 5/84 × 5 = 90/420 - Add the two like fractions:
1176/420 + 90/420 = 1176 + 90/420 = 1266/420 - 1266/420 simplified gives 211/70
- So, 28/10 + 18/84 = 211/70
In mixed form: 31/70
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