Stemoto LogoStemoto
Back to Directory

Fractions & Decimals (Smart Dual Scale Decimal Fraction Converter)

Source:

Convert fractions to decimals physically! Place precision acrylic fraction weights (1/2, 1/4, 3/10) onto a dual load cell scale balance. The system calculates exact decimal equivalents (0.50, 0.25, 0.30) and percentage representations.

Categorisation

Props & Materials Required

  • •Precision color-coded fraction block set (1 Whole, 1/2, 1/4, 1/5, 1/10, 1/100)
  • •PN532 NFC reader module (reads fraction tags)
  • •Dual HX711 load cell balance scale
  • •ESP32 controller board
  • •0.96-inch OLED display screen
  • •DFPlayer Mini MP3 module + 3W speaker

Step-by-Step Instructions

1

Place 3/4 Fraction Block on Scale

Place 3/4 fraction block on the scale platform. NFC reader identifies block value.

2

Load Cell Measures Mass Ratio

Load cell measures 75% of whole unit weight.

3

OLED Converts Fraction to Decimal

OLED displays: 'Fraction: 3/4 | Decimal: 0.75 | Percentage: 75%'.

4

Decimal Addition Challenge

Add 1/10 block (0.10). Scale updates: '0.75 + 0.10 = 0.85 (17/20)'. Speaker confirms decimal addition rule!

Why It Works & Notes

Fractions (3/4) and Decimals (0.75) represent the exact same numeric value. Placing physical fraction blocks on a digital load scale that displays simultaneous Fraction, Decimal, and Percentage readouts anchors abstract conversion.