Add 4/40 and 21/15
1st number: 4/40, 2nd number: 1 6/15
4/40 + 21/15 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
4/40 = 4 × 3/40 × 3 = 12/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
21/15 = 21 × 8/15 × 8 = 168/120 - Add the two like fractions:
12/120 + 168/120 = 12 + 168/120 = 180/120 - 180/120 simplified gives 3/2
- So, 4/40 + 21/15 = 3/2
In mixed form: 11/2
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