Answers

Add 21/48 and 32/90

21/48 + 32/90 is 571/720.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 48 and 90 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 48 × 15 = 720,
   21/48 = 21 × 15/48 × 15 = 315/720
3. Likewise, for the 2nd fraction, since 90 × 8 = 720,
   32/90 = 32 × 8/90 × 8 = 256/720
4. Add the two like fractions:
   315/720 + 256/720 = 315 + 256/720 = 571/720
5. So, 21/48 + 32/90 = 571/720

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁴²/₄₈+³²/₉₀ ²¹/₄₈+⁶⁴/₉₀ ²¹/₉₆+³²/₉₀ ⁶³/₄₈+³²/₉₀ ²¹/₄₈+⁹⁶/₉₀

Add Fractions Calculator