Add 15/84 and 28/10
1st number: 15/84, 2nd number: 2 8/10
15/84 + 28/10 is 417/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 10 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
15/84 = 15 × 5/84 × 5 = 75/420 - Likewise, for the 2nd fraction, since 10 × 42 = 420,
28/10 = 28 × 42/10 × 42 = 1176/420 - Add the two like fractions:
75/420 + 1176/420 = 75 + 1176/420 = 1251/420 - 1251/420 simplified gives 417/140
- So, 15/84 + 28/10 = 417/140
In mixed form: 2137/140
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