Add 20/90 and 49/35
1st number: 20/90, 2nd number: 1 14/35
20/90 + 49/35 is 73/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 35 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
20/90 = 20 × 7/90 × 7 = 140/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
49/35 = 49 × 18/35 × 18 = 882/630 - Add the two like fractions:
140/630 + 882/630 = 140 + 882/630 = 1022/630 - 1022/630 simplified gives 73/45
- So, 20/90 + 49/35 = 73/45
In mixed form: 128/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/90+49/35 20/90+98/35 20/90+49/70 60/90+49/35