Add 7/40 and 7/8
7/40 + 7/8 is 21/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
7/40 = 7 × 1/40 × 1 = 7/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
7/8 = 7 × 5/8 × 5 = 35/40 - Add the two like fractions:
7/40 + 35/40 = 7 + 35/40 = 42/40 - 42/40 simplified gives 21/20
- So, 7/40 + 7/8 = 21/20
In mixed form: 11/20
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