Add 24/54 and 42/70
24/54 + 42/70 is 47/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 70 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 54 × 35 = 1890,
24/54 = 24 × 35/54 × 35 = 840/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
42/70 = 42 × 27/70 × 27 = 1134/1890 - Add the two like fractions:
840/1890 + 1134/1890 = 840 + 1134/1890 = 1974/1890 - 1974/1890 simplified gives 47/45
- So, 24/54 + 42/70 = 47/45
In mixed form: 12/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/54+42/70 24/54+84/70 72/54+42/70