Add 15/84 and 42/9
1st number: 15/84, 2nd number: 4 6/9
15/84 + 42/9 is 407/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
15/84 = 15 × 3/84 × 3 = 45/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
42/9 = 42 × 28/9 × 28 = 1176/252 - Add the two like fractions:
45/252 + 1176/252 = 45 + 1176/252 = 1221/252 - 1221/252 simplified gives 407/84
- So, 15/84 + 42/9 = 407/84
In mixed form: 471/84
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