Add 84/40 and 30/63
1st number: 2 4/40, 2nd number: 30/63
84/40 + 30/63 is 541/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 63 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 40 × 63 = 2520,
84/40 = 84 × 63/40 × 63 = 5292/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
30/63 = 30 × 40/63 × 40 = 1200/2520 - Add the two like fractions:
5292/2520 + 1200/2520 = 5292 + 1200/2520 = 6492/2520 - 6492/2520 simplified gives 541/210
- So, 84/40 + 30/63 = 541/210
In mixed form: 2121/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/40+60/63 84/80+30/63 84/40+90/63