Add 72/90 and 50/8
1st number: 72/90, 2nd number: 6 2/8
72/90 + 50/8 is 141/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
72/90 = 72 × 4/90 × 4 = 288/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
50/8 = 50 × 45/8 × 45 = 2250/360 - Add the two like fractions:
288/360 + 2250/360 = 288 + 2250/360 = 2538/360 - 2538/360 simplified gives 141/20
- So, 72/90 + 50/8 = 141/20
In mixed form: 71/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/90+50/16 72/90+50/24 72/90+50/40 72/90+50/56