Add 15/8 and 20/40
1st number: 1 7/8, 2nd number: 20/40
15/8 + 20/40 is 19/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
15/8 = 15 × 5/8 × 5 = 75/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
20/40 = 20 × 1/40 × 1 = 20/40 - Add the two like fractions:
75/40 + 20/40 = 75 + 20/40 = 95/40 - 95/40 simplified gives 19/8
- So, 15/8 + 20/40 = 19/8
In mixed form: 23/8
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