Add 2/5 and 7/8
2/5 + 7/8 is 51/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
2/5 = 2 × 8/5 × 8 = 16/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
7/8 = 7 × 5/8 × 5 = 35/40 - Add the two like fractions:
16/40 + 35/40 = 16 + 35/40 = 51/40 - So, 2/5 + 7/8 = 51/40
In mixed form: 111/40
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