Add 28/70 and 24/90
28/70 + 24/90 is 2/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
28/70 = 28 × 9/70 × 9 = 252/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
24/90 = 24 × 7/90 × 7 = 168/630 - Add the two like fractions:
252/630 + 168/630 = 252 + 168/630 = 420/630 - 420/630 simplified gives 2/3
- So, 28/70 + 24/90 = 2/3
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