Add 7/40 and 28/70
7/40 + 28/70 is 23/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
7/40 = 7 × 7/40 × 7 = 49/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
28/70 = 28 × 4/70 × 4 = 112/280 - Add the two like fractions:
49/280 + 112/280 = 49 + 112/280 = 161/280 - 161/280 simplified gives 23/40
- So, 7/40 + 28/70 = 23/40
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