Add 45/70 and 5/20
45/70 + 5/20 is 25/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
45/70 = 45 × 2/70 × 2 = 90/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
5/20 = 5 × 7/20 × 7 = 35/140 - Add the two like fractions:
90/140 + 35/140 = 90 + 35/140 = 125/140 - 125/140 simplified gives 25/28
- So, 45/70 + 5/20 = 25/28
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