Add 84/30 and 54/63
1st number: 2 24/30, 2nd number: 54/63
84/30 + 54/63 is 128/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 30 × 21 = 630,
84/30 = 84 × 21/30 × 21 = 1764/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
54/63 = 54 × 10/63 × 10 = 540/630 - Add the two like fractions:
1764/630 + 540/630 = 1764 + 540/630 = 2304/630 - 2304/630 simplified gives 128/35
- So, 84/30 + 54/63 = 128/35
In mixed form: 323/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/60+54/63 84/90+54/63