Add 84/15 and 42/40
1st number: 5 9/15, 2nd number: 1 2/40
84/15 + 42/40 is 133/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
84/15 = 84 × 8/15 × 8 = 672/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
42/40 = 42 × 3/40 × 3 = 126/120 - Add the two like fractions:
672/120 + 126/120 = 672 + 126/120 = 798/120 - 798/120 simplified gives 133/20
- So, 84/15 + 42/40 = 133/20
In mixed form: 613/20
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