Add 21/15 and 14/40
1st number: 1 6/15, 2nd number: 14/40
21/15 + 14/40 is 7/4.
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,
21/15 = 21 × 8/15 × 8 = 168/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
14/40 = 14 × 3/40 × 3 = 42/120 - Add the two like fractions:
168/120 + 42/120 = 168 + 42/120 = 210/120 - 210/120 simplified gives 7/4
- So, 21/15 + 14/40 = 7/4
In mixed form: 13/4
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